256790902 has 8 divisors (see below), whose sum is σ = 387737712. Its totient is φ = 127545000.

The previous prime is 256790873. The next prime is 256790903. The reversal of 256790902 is 209097652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256790903) 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, 424849 + ... + 425452.

It is an arithmetic number, because the mean of its divisors is an integer number (48467214).

Almost surely, 2^256790902 is an apocalyptic number.

256790902 is a deficient number, since it is larger than the sum of its proper divisors (130946810).

256790902 is a wasteful number, since it uses less digits than its factorization.

256790902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850454.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 256790902 is about 16024.6966273936. The cubic root of 256790902 is about 635.6136436852.

The spelling of 256790902 in words is "two hundred fifty-six million, seven hundred ninety thousand, nine hundred two".