620303244 has 24 divisors (see below), whose sum is σ = 1578954048. Its totient is φ = 187970640.

The previous prime is 620303231. The next prime is 620303303. The reversal of 620303244 is 442303026.

It is a happy number.

It is a super-2 number, since 2×620303244² = 769552229033847072, which contains 22 as substring.

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, 2349502 + ... + 2349765.

It is an arithmetic number, because the mean of its divisors is an integer number (65789752).

Almost surely, 2^620303244 is an apocalyptic number.

It is an amenable number.

620303244 is an abundant number, since it is smaller than the sum of its proper divisors (958650804).

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

620303244 is a wasteful number, since it uses less digits than its factorization.

620303244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699285 (or 4699283 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 620303244 is about 24905.8877376415. The cubic root of 620303244 is about 852.8408954190.

The spelling of 620303244 in words is "six hundred twenty million, three hundred three thousand, two hundred forty-four".