240402256 has 20 divisors (see below), whose sum is σ = 486031392. Its totient is φ = 114974816.

The previous prime is 240402221. The next prime is 240402263. The reversal of 240402256 is 652204042.

240402256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 240402256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326266 + ... + 327001.

Almost surely, 2^240402256 is an apocalyptic number.

It is an amenable number.

240402256 is an abundant number, since it is smaller than the sum of its proper divisors (245629136).

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

240402256 is a wasteful number, since it uses less digits than its factorization.

240402256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653298 (or 653292 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 240402256 is about 15504.9107059667. The cubic root of 240402256 is about 621.7935026523.

Adding to 240402256 its reverse (652204042), we get a palindrome (892606298).

The spelling of 240402256 in words is "two hundred forty million, four hundred two thousand, two hundred fifty-six".