256169104 has 20 divisors (see below), whose sum is σ = 497011840. Its totient is φ = 127908000.

The previous prime is 256169099. The next prime is 256169159. The reversal of 256169104 is 401961652.

It is a self number, because there is not a number n which added to its sum of digits gives 256169104.

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, 1357 + ... + 22675.

It is an arithmetic number, because the mean of its divisors is an integer number (24850592).

Almost surely, 2^256169104 is an apocalyptic number.

It is an amenable number.

256169104 is a deficient number, since it is larger than the sum of its proper divisors (240842736).

256169104 is a wasteful number, since it uses less digits than its factorization.

256169104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22078 (or 22072 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 256169104 is about 16005.2836276025. The cubic root of 256169104 is about 635.1002003617.

The spelling of 256169104 in words is "two hundred fifty-six million, one hundred sixty-nine thousand, one hundred four".