256361622 has 16 divisors (see below), whose sum is σ = 559334592. Its totient is φ = 77685320.

The previous prime is 256361603. The next prime is 256361647. The reversal of 256361622 is 226163652.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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, 1942068 + ... + 1942199.

It is an arithmetic number, because the mean of its divisors is an integer number (34958412).

Almost surely, 2^256361622 is an apocalyptic number.

256361622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256361622 is an abundant number, since it is smaller than the sum of its proper divisors (302972970).

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

256361622 is a wasteful number, since it uses less digits than its factorization.

256361622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884283.

The product of its digits is 25920, while the sum is 33.

The square root of 256361622 is about 16011.2966995181. The cubic root of 256361622 is about 635.2592588404.

The spelling of 256361622 in words is "two hundred fifty-six million, three hundred sixty-one thousand, six hundred twenty-two".