621880752 has 40 divisors (see below), whose sum is σ = 1621277680. Its totient is φ = 205390080.

The previous prime is 621880751. The next prime is 621880813. The reversal of 621880752 is 257088126.

It is a self number, because there is not a number n which added to its sum of digits gives 621880752.

It is not an unprimeable number, because it can be changed into a prime (621880751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54199 + ... + 64662.

It is an arithmetic number, because the mean of its divisors is an integer number (40531942).

Almost surely, 2^621880752 is an apocalyptic number.

It is an amenable number.

621880752 is an abundant number, since it is smaller than the sum of its proper divisors (999396928).

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

621880752 is a wasteful number, since it uses less digits than its factorization.

621880752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118981 (or 118975 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 621880752 is about 24937.5370074913. The cubic root of 621880752 is about 853.5632434435.

The spelling of 621880752 in words is "six hundred twenty-one million, eight hundred eighty thousand, seven hundred fifty-two".