620985472 has 32 divisors (see below), whose sum is σ = 1240753500. Its totient is φ = 309580800.

The previous prime is 620985451. The next prime is 620985509. The reversal of 620985472 is 274589026.

It can be written as a sum of positive squares in 2 ways, for example, as 569490496 + 51494976 = 23864^2 + 7176^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37722 + ... + 51622.

Almost surely, 2^620985472 is an apocalyptic number.

It is an amenable number.

620985472 is a deficient number, since it is larger than the sum of its proper divisors (619768028).

620985472 is a wasteful number, since it uses less digits than its factorization.

620985472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14264 (or 14252 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 620985472 is about 24919.5800927704. The cubic root of 620985472 is about 853.1534408119.

The spelling of 620985472 in words is "six hundred twenty million, nine hundred eighty-five thousand, four hundred seventy-two".