2331420 has 144 divisors (see below), whose sum is σ = 8311968. Its totient is φ = 483840.

The previous prime is 2331419. The next prime is 2331421. The reversal of 2331420 is 241332.

It is an interprime number because it is at equal distance from previous prime (2331419) and next prime (2331421).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 2331420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38190 + ... + 38250.

It is an arithmetic number, because the mean of its divisors is an integer number (57722).

2^2331420 is an apocalyptic number.

2331420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2331420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4155984).

2331420 is an abundant number, since it is smaller than the sum of its proper divisors (5980548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2331420 is a wasteful number, since it uses less digits than its factorization.

2331420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2331420 is about 1526.8988178658. The cubic root of 2331420 is about 132.5989767170.

Adding to 2331420 its reverse (241332), we get a palindrome (2572752).

It can be divided in two parts, 233 and 1420, that added together give a triangular number (1653 = T₅₇).

The spelling of 2331420 in words is "two million, three hundred thirty-one thousand, four hundred twenty".