621332074 has 16 divisors (see below), whose sum is σ = 1060931520. Its totient is φ = 270144160.

The previous prime is 621332027. The next prime is 621332119. The reversal of 621332074 is 470233126.

It is a super-2 number, since 2×621332074² = 772107092362282952, which contains 22 as substring.

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, 613459 + ... + 614470.

It is an arithmetic number, because the mean of its divisors is an integer number (66308220).

Almost surely, 2^621332074 is an apocalyptic number.

621332074 is a deficient number, since it is larger than the sum of its proper divisors (439599446).

621332074 is a wasteful number, since it uses less digits than its factorization.

621332074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227965.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 621332074 is about 24926.5335335662. The cubic root of 621332074 is about 853.3121400105.

The spelling of 621332074 in words is "six hundred twenty-one million, three hundred thirty-two thousand, seventy-four".