2344440 has 64 divisors (see below), whose sum is σ = 8040960. Its totient is φ = 535680.

The previous prime is 2344439. The next prime is 2344457. The reversal of 2344440 is 444432.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556 + ... + 2235.

It is an arithmetic number, because the mean of its divisors is an integer number (125640).

2^2344440 is an apocalyptic number.

2344440 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 2344440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4020480).

2344440 is an abundant number, since it is smaller than the sum of its proper divisors (5696520).

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

2344440 is a wasteful number, since it uses less digits than its factorization.

2344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2344440 is about 1531.1564257123. The cubic root of 2344440 is about 132.8453551473.

Adding to 2344440 its reverse (444432), we get a palindrome (2788872).

The spelling of 2344440 in words is "two million, three hundred forty-four thousand, four hundred forty".