620608432 has 20 divisors (see below), whose sum is σ = 1207467360. Its totient is φ = 309003968.

The previous prime is 620608423. The next prime is 620608447. The reversal of 620608432 is 234806026.

It is a junction number, because it is equal to n+sod(n) for n = 620608394 and 620608403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77323 + ... + 84970.

It is an arithmetic number, because the mean of its divisors is an integer number (60373368).

Almost surely, 2^620608432 is an apocalyptic number.

It is an amenable number.

620608432 is a deficient number, since it is larger than the sum of its proper divisors (586858928).

620608432 is a wasteful number, since it uses less digits than its factorization.

620608432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162540 (or 162534 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 620608432 is about 24912.0138086025. The cubic root of 620608432 is about 852.9807378462.

The spelling of 620608432 in words is "six hundred twenty million, six hundred eight thousand, four hundred thirty-two".