256207212 has 60 divisors (see below), whose sum is σ = 698917296. Its totient is φ = 81686880.

The previous prime is 256207183. The next prime is 256207243. The reversal of 256207212 is 212702652.

256207212 is a `hidden beast` number, since 25 + 620 + 7 + 2 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9739 + ... + 24642.

Almost surely, 2^256207212 is an apocalyptic number.

It is an amenable number.

256207212 is an abundant number, since it is smaller than the sum of its proper divisors (442710084).

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

256207212 is a wasteful number, since it uses less digits than its factorization.

256207212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34420 (or 34409 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 256207212 is about 16006.4740652025. The cubic root of 256207212 is about 635.1316915369.

Adding to 256207212 its reverse (212702652), we get a palindrome (468909864).

The spelling of 256207212 in words is "two hundred fifty-six million, two hundred seven thousand, two hundred twelve".