256696194 has 32 divisors (see below), whose sum is σ = 542626560. Its totient is φ = 80730000.

The previous prime is 256696183. The next prime is 256696217. The reversal of 256696194 is 491696652.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24129 + ... + 33099.

It is an arithmetic number, because the mean of its divisors is an integer number (16957080).

Almost surely, 2^256696194 is an apocalyptic number.

256696194 is an abundant number, since it is smaller than the sum of its proper divisors (285930366).

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

256696194 is a wasteful number, since it uses less digits than its factorization.

256696194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246.

The product of its digits is 699840, while the sum is 48.

The square root of 256696194 is about 16021.7412911331. The cubic root of 256696194 is about 635.5354930724.

The spelling of 256696194 in words is "two hundred fifty-six million, six hundred ninety-six thousand, one hundred ninety-four".