621342008 has 32 divisors (see below), whose sum is σ = 1332420960. Its totient is φ = 266094720.

The previous prime is 621341969. The next prime is 621342013. The reversal of 621342008 is 800243126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94310 + ... + 100682.

It is an arithmetic number, because the mean of its divisors is an integer number (41638155).

Almost surely, 2^621342008 is an apocalyptic number.

It is an amenable number.

621342008 is an abundant number, since it is smaller than the sum of its proper divisors (711078952).

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

621342008 is a wasteful number, since it uses less digits than its factorization.

621342008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 621342008 is about 24926.7327983432. The cubic root of 621342008 is about 853.3166876365.

The spelling of 621342008 in words is "six hundred twenty-one million, three hundred forty-two thousand, eight".