620534344 has 64 divisors (see below), whose sum is σ = 1248534000. Its totient is φ = 288583680.

The previous prime is 620534339. The next prime is 620534359. The reversal of 620534344 is 443435026.

It can be written as a sum of positive squares in 8 ways, for example, as 238331844 + 382202500 = 15438^2 + 19550^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846202 + ... + 846934.

Almost surely, 2^620534344 is an apocalyptic number.

It is an amenable number.

620534344 is an abundant number, since it is smaller than the sum of its proper divisors (627999656).

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

620534344 is a wasteful number, since it uses less digits than its factorization.

620534344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 620534344 is about 24910.5267708252. The cubic root of 620534344 is about 852.9467936560.

The spelling of 620534344 in words is "six hundred twenty million, five hundred thirty-four thousand, three hundred forty-four".