2400257156 has 36 divisors (see below), whose sum is σ = 4860043440. Its totient is φ = 1033599600.

The previous prime is 2400257131. The next prime is 2400257159. The reversal of 2400257156 is 6517520042.

It is a super-2 number, since 2×2400257156² = 11522468829858416672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2400257159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121310 + ... + 139701.

Almost surely, 2^2400257156 is an apocalyptic number.

It is an amenable number.

2400257156 is an abundant number, since it is smaller than the sum of its proper divisors (2459786284).

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

2400257156 is a wasteful number, since it uses less digits than its factorization.

2400257156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261056 (or 261043 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2400257156 is about 48992.4193727968. The cubic root of 2400257156 is about 1338.9137175398.

Adding to 2400257156 its reverse (6517520042), we get a palindrome (8917777198).

The spelling of 2400257156 in words is "two billion, four hundred million, two hundred fifty-seven thousand, one hundred fifty-six".