256036022434 has 4 divisors (see below), whose sum is σ = 384054033654. Its totient is φ = 128018011216.

The previous prime is 256036022387. The next prime is 256036022467. The reversal of 256036022434 is 434220630652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 255982366809 + 53655625 = 505947^2 + 7325^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256036022393 and 256036022402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64009005607 + ... + 64009005610.

Almost surely, 2^256036022434 is an apocalyptic number.

256036022434 is a deficient number, since it is larger than the sum of its proper divisors (128018011220).

256036022434 is a wasteful number, since it uses less digits than its factorization.

256036022434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128018011219.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 256036022434 in words is "two hundred fifty-six billion, thirty-six million, twenty-two thousand, four hundred thirty-four".