620045808 has 40 divisors (see below), whose sum is σ = 1635871488. Its totient is φ = 202283712.

The previous prime is 620045771. The next prime is 620045813. The reversal of 620045808 is 808540026.

620045808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 135166 + ... + 139677.

Almost surely, 2^620045808 is an apocalyptic number.

It is an amenable number.

620045808 is an abundant number, since it is smaller than the sum of its proper divisors (1015825680).

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

620045808 is a wasteful number, since it uses less digits than its factorization.

620045808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274901 (or 274895 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 620045808 is about 24900.7190257631. The cubic root of 620045808 is about 852.7228981167.

The spelling of 620045808 in words is "six hundred twenty million, forty-five thousand, eight hundred eight".