621265074 has 16 divisors (see below), whose sum is σ = 1243220160. Its totient is φ = 206973360.

The previous prime is 621265063. The next prime is 621265081. The reversal of 621265074 is 470562126.

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, 16654 + ... + 38985.

It is an arithmetic number, because the mean of its divisors is an integer number (77701260).

Almost surely, 2^621265074 is an apocalyptic number.

621265074 is an abundant number, since it is smaller than the sum of its proper divisors (621955086).

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

621265074 is a wasteful number, since it uses less digits than its factorization.

621265074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57505.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 621265074 is about 24925.1895479252. The cubic root of 621265074 is about 853.2814672184.

The spelling of 621265074 in words is "six hundred twenty-one million, two hundred sixty-five thousand, seventy-four".