620288264 has 16 divisors (see below), whose sum is σ = 1164203820. Its totient is φ = 309833920.

The previous prime is 620288243. The next prime is 620288293. The reversal of 620288264 is 462882026.

It can be written as a sum of positive squares in 2 ways, for example, as 459759364 + 160528900 = 21442^2 + 12670^2 .

It is a super-2 number, since 2×620288264² = 769515060912267392, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30167 + ... + 46374.

Almost surely, 2^620288264 is an apocalyptic number.

It is an amenable number.

620288264 is a deficient number, since it is larger than the sum of its proper divisors (543915556).

620288264 is a wasteful number, since it uses less digits than its factorization.

620288264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77560 (or 77556 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 620288264 is about 24905.5870037227. The cubic root of 620288264 is about 852.8340301427.

The spelling of 620288264 in words is "six hundred twenty million, two hundred eighty-eight thousand, two hundred sixty-four".