2257944 has 32 divisors (see below), whose sum is σ = 6079920. Its totient is φ = 694656.

The previous prime is 2257943. The next prime is 2257949. The reversal of 2257944 is 4497522.

It is a super-2 number, since 2×2257944² = 10196622214272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3307 + ... + 3930.

2^2257944 is an apocalyptic number.

2257944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2257944 is an abundant number, since it is smaller than the sum of its proper divisors (3821976).

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

2257944 is a wasteful number, since it uses less digits than its factorization.

2257944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7255 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 2257944 is about 1502.6456668157. The cubic root of 2257944 is about 131.1911046418.

The spelling of 2257944 in words is "two million, two hundred fifty-seven thousand, nine hundred forty-four".