256936190 has 16 divisors (see below), whose sum is σ = 528554592. Its totient is φ = 88092384.

The previous prime is 256936189. The next prime is 256936213. The reversal of 256936190 is 91639652.

It is a super-2 number, since 2×256936190² = 132032411463432200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835189 + ... + 1835328.

It is an arithmetic number, because the mean of its divisors is an integer number (33034662).

Almost surely, 2^256936190 is an apocalyptic number.

256936190 is an abundant number, since it is smaller than the sum of its proper divisors (271618402).

256936190 is a wasteful number, since it uses less digits than its factorization.

256936190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670531.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 256936190 is about 16029.2292391119. The cubic root of 256936190 is about 635.7334942765.

The spelling of 256936190 in words is "two hundred fifty-six million, nine hundred thirty-six thousand, one hundred ninety".