256216274 has 16 divisors (see below), whose sum is σ = 410363712. Its totient is φ = 119687568.

The previous prime is 256216267. The next prime is 256216309. The reversal of 256216274 is 472612652.

256216274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62789 + ... + 66744.

It is an arithmetic number, because the mean of its divisors is an integer number (25647732).

Almost surely, 2^256216274 is an apocalyptic number.

256216274 is a deficient number, since it is larger than the sum of its proper divisors (154147438).

256216274 is a wasteful number, since it uses less digits than its factorization.

256216274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129601.

The product of its digits is 40320, while the sum is 35.

The square root of 256216274 is about 16006.7571356599. The cubic root of 256216274 is about 635.1391796107.

The spelling of 256216274 in words is "two hundred fifty-six million, two hundred sixteen thousand, two hundred seventy-four".