622944840 has 96 divisors (see below), whose sum is σ = 2173970880. Its totient is φ = 142386048.

The previous prime is 622944809. The next prime is 622944851. The reversal of 622944840 is 48449226.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47092 + ... + 58851.

It is an arithmetic number, because the mean of its divisors is an integer number (22645530).

Almost surely, 2^622944840 is an apocalyptic number.

622944840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

622944840 is an abundant number, since it is smaller than the sum of its proper divisors (1551026040).

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

622944840 is a wasteful number, since it uses less digits than its factorization.

622944840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105971 (or 105960 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 622944840 is about 24958.8629548704. The cubic root of 622944840 is about 854.0498044948.

The spelling of 622944840 in words is "six hundred twenty-two million, nine hundred forty-four thousand, eight hundred forty".