256074222 has 16 divisors (see below), whose sum is σ = 515412432. Its totient is φ = 84814080.

The previous prime is 256074211. The next prime is 256074227. The reversal of 256074222 is 222470652.

It is a self number, because there is not a number n which added to its sum of digits gives 256074222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256074227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134979 + ... + 136862.

It is an arithmetic number, because the mean of its divisors is an integer number (32213277).

Almost surely, 2^256074222 is an apocalyptic number.

256074222 is an abundant number, since it is smaller than the sum of its proper divisors (259338210).

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

256074222 is a wasteful number, since it uses less digits than its factorization.

256074222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272003.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 256074222 is about 16002.3192694059. The cubic root of 256074222 is about 635.0217794832.

The spelling of 256074222 in words is "two hundred fifty-six million, seventy-four thousand, two hundred twenty-two".