256012210 has 32 divisors (see below), whose sum is σ = 470059200. Its totient is φ = 100363200.

The previous prime is 256012193. The next prime is 256012223. The reversal of 256012210 is 12210652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364860 + ... + 365560.

It is an arithmetic number, because the mean of its divisors is an integer number (14689350).

Almost surely, 2^256012210 is an apocalyptic number.

256012210 is a deficient number, since it is larger than the sum of its proper divisors (214046990).

256012210 is a wasteful number, since it uses less digits than its factorization.

256012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 256012210 is about 16000.3815579504. The cubic root of 256012210 is about 634.9705155054.

Adding to 256012210 its reverse (12210652), we get a palindrome (268222862).

The spelling of 256012210 in words is "two hundred fifty-six million, twelve thousand, two hundred ten".