620542264 has 16 divisors (see below), whose sum is σ = 1182591720. Its totient is φ = 305184480.

The previous prime is 620542249. The next prime is 620542303. The reversal of 620542264 is 462245026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635314 + ... + 636289.

Almost surely, 2^620542264 is an apocalyptic number.

It is an amenable number.

620542264 is a deficient number, since it is larger than the sum of its proper divisors (562049456).

620542264 is a wasteful number, since it uses less digits than its factorization.

620542264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271670 (or 1271666 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 620542264 is about 24910.6857392566. The cubic root of 620542264 is about 852.9504224156.

The spelling of 620542264 in words is "six hundred twenty million, five hundred forty-two thousand, two hundred sixty-four".