620504424 has 48 divisors (see below), whose sum is σ = 1682443620. Its totient is φ = 206599680.

The previous prime is 620504399. The next prime is 620504447. The reversal of 620504424 is 424405026.

It can be written as a sum of positive squares in 2 ways, for example, as 554602500 + 65901924 = 23550^2 + 8118^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65934 + ... + 74754.

Almost surely, 2^620504424 is an apocalyptic number.

It is an amenable number.

620504424 is an abundant number, since it is smaller than the sum of its proper divisors (1061939196).

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

620504424 is a wasteful number, since it uses less digits than its factorization.

620504424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9810 (or 9803 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 620504424 is about 24909.9262142625. The cubic root of 620504424 is about 852.9330847300.

The spelling of 620504424 in words is "six hundred twenty million, five hundred four thousand, four hundred twenty-four".