256193276 has 12 divisors (see below), whose sum is σ = 454653360. Its totient is φ = 126292320.

The previous prime is 256193257. The next prime is 256193293. The reversal of 256193276 is 672391652.

It is a super-2 number, since 2×256193276² = 131269989335224352, 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 3 ways as a sum of consecutive naturals, for example, 450761 + ... + 451328.

It is an arithmetic number, because the mean of its divisors is an integer number (37887780).

Almost surely, 2^256193276 is an apocalyptic number.

It is an amenable number.

256193276 is a deficient number, since it is larger than the sum of its proper divisors (198460084).

256193276 is a wasteful number, since it uses less digits than its factorization.

256193276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902164 (or 902162 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 256193276 is about 16006.0387354273. The cubic root of 256193276 is about 635.1201756554.

The spelling of 256193276 in words is "two hundred fifty-six million, one hundred ninety-three thousand, two hundred seventy-six".