620168772 has 24 divisors (see below), whose sum is σ = 1532182176. Its totient is φ = 194562688.

The previous prime is 620168771. The next prime is 620168831. The reversal of 620168772 is 277861026.

It is a self number, because there is not a number n which added to its sum of digits gives 620168772.

It is not an unprimeable number, because it can be changed into a prime (620168771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1519818 + ... + 1520225.

It is an arithmetic number, because the mean of its divisors is an integer number (63840924).

Almost surely, 2^620168772 is an apocalyptic number.

It is an amenable number.

620168772 is an abundant number, since it is smaller than the sum of its proper divisors (912013404).

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

620168772 is a wasteful number, since it uses less digits than its factorization.

620168772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040067 (or 3040065 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 620168772 is about 24903.1879886893. The cubic root of 620168772 is about 852.7792634618.

The spelling of 620168772 in words is "six hundred twenty million, one hundred sixty-eight thousand, seven hundred seventy-two".