620354624 has 28 divisors (see below), whose sum is σ = 1232154000. Its totient is φ = 309890688.

The previous prime is 620354621. The next prime is 620354639. The reversal of 620354624 is 426453026.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (620354621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76727 + ... + 84425.

It is an arithmetic number, because the mean of its divisors is an integer number (44005500).

Almost surely, 2^620354624 is an apocalyptic number.

620354624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

620354624 is a deficient number, since it is larger than the sum of its proper divisors (611799376).

620354624 is a wasteful number, since it uses less digits than its factorization.

620354624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970 (or 8960 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 620354624 is about 24906.9191992908. The cubic root of 620354624 is about 852.8644418354.

The spelling of 620354624 in words is "six hundred twenty million, three hundred fifty-four thousand, six hundred twenty-four".