620388474 has 16 divisors (see below), whose sum is σ = 1283562720. Its totient is φ = 199665200.

The previous prime is 620388451. The next prime is 620388533. The reversal of 620388474 is 474883026.

620388474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782552 + ... + 1782899.

It is an arithmetic number, because the mean of its divisors is an integer number (80222670).

Almost surely, 2^620388474 is an apocalyptic number.

620388474 is an abundant number, since it is smaller than the sum of its proper divisors (663174246).

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

620388474 is a wasteful number, since it uses less digits than its factorization.

620388474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565485.

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 620388474 is about 24907.5987200693. The cubic root of 620388474 is about 852.8799538964.

The spelling of 620388474 in words is "six hundred twenty million, three hundred eighty-eight thousand, four hundred seventy-four".