2421072 has 120 divisors (see below), whose sum is σ = 7660224. Its totient is φ = 709632.

The previous prime is 2421061. The next prime is 2421073. The reversal of 2421072 is 2701242.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56283 + ... + 56325.

2^2421072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3830112).

2421072 is an abundant number, since it is smaller than the sum of its proper divisors (5239152).

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

2421072 is a wasteful number, since it uses less digits than its factorization.

2421072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2421072 is about 1555.9794343114. The cubic root of 2421072 is about 134.2772902086.

The spelling of 2421072 in words is "two million, four hundred twenty-one thousand, seventy-two".