620494924 has 12 divisors (see below), whose sum is σ = 1240989904. Its totient is φ = 265926384.

The previous prime is 620494909. The next prime is 620494937. The reversal of 620494924 is 429494026.

620494924 is an admirable number.

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, 11080239 + ... + 11080294.

Almost surely, 2^620494924 is an apocalyptic number.

It is an amenable number.

620494924 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620494924 is a wasteful number, since it uses less digits than its factorization.

620494924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22160544 (or 22160542 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 620494924 is about 24909.7355264965. The cubic root of 620494924 is about 852.9287318706.

The spelling of 620494924 in words is "six hundred twenty million, four hundred ninety-four thousand, nine hundred twenty-four".