2430256 has 20 divisors (see below), whose sum is σ = 4739032. Its totient is φ = 1207296.

The previous prime is 2430251. The next prime is 2430257. The reversal of 2430256 is 6520342.

It is a happy number.

It is a super-2 number, since 2×2430256² = 11812288451072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2430251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695 + ... + 3481.

2^2430256 is an apocalyptic number.

It is an amenable number.

2430256 is a deficient number, since it is larger than the sum of its proper divisors (2308776).

2430256 is a wasteful number, since it uses less digits than its factorization.

2430256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2430256 is about 1558.9278366878. The cubic root of 2430256 is about 134.4468633816.

Adding to 2430256 its reverse (6520342), we get a palindrome (8950598).

The spelling of 2430256 in words is "two million, four hundred thirty thousand, two hundred fifty-six".