620388475 has 24 divisors (see below), whose sum is σ = 925456640. Its totient is φ = 403017120.

The previous prime is 620388451. The next prime is 620388533. The reversal of 620388475 is 574883026.

It is not a de Polignac number, because 620388475 - 2⁷ = 620388347 is a prime.

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, 89967 + ... + 96616.

Almost surely, 2^620388475 is an apocalyptic number.

620388475 is a deficient number, since it is larger than the sum of its proper divisors (305068165).

620388475 is a wasteful number, since it uses less digits than its factorization.

620388475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186619 (or 186614 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 620388475 is about 24907.5987401435. The cubic root of 620388475 is about 852.8799543546.

The spelling of 620388475 in words is "six hundred twenty million, three hundred eighty-eight thousand, four hundred seventy-five".