256453212 has 12 divisors (see below), whose sum is σ = 598390856. Its totient is φ = 85484400.

The previous prime is 256453201. The next prime is 256453229. The reversal of 256453212 is 212354652.

256453212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 256453212.

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, 10685539 + ... + 10685562.

Almost surely, 2^256453212 is an apocalyptic number.

It is an amenable number.

256453212 is an abundant number, since it is smaller than the sum of its proper divisors (341937644).

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

256453212 is a wasteful number, since it uses less digits than its factorization.

256453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21371108 (or 21371106 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 256453212 is about 16014.1566121978. The cubic root of 256453212 is about 635.3349025962.

The spelling of 256453212 in words is "two hundred fifty-six million, four hundred fifty-three thousand, two hundred twelve".