256212968 has 16 divisors (see below), whose sum is σ = 524072160. Its totient is φ = 116460400.

The previous prime is 256212961. The next prime is 256212989. The reversal of 256212968 is 869212652.

It is not an unprimeable number, because it can be changed into a prime (256212961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455668 + ... + 1455843.

It is an arithmetic number, because the mean of its divisors is an integer number (32754510).

Almost surely, 2^256212968 is an apocalyptic number.

It is an amenable number.

256212968 is an abundant number, since it is smaller than the sum of its proper divisors (267859192).

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

256212968 is a wasteful number, since it uses less digits than its factorization.

256212968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911528 (or 2911524 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 256212968 is about 16006.6538664394. The cubic root of 256212968 is about 635.1364478312.

The spelling of 256212968 in words is "two hundred fifty-six million, two hundred twelve thousand, nine hundred sixty-eight".