620244304 has 10 divisors (see below), whose sum is σ = 1201723370. Its totient is φ = 310122144.

The previous prime is 620244301. The next prime is 620244349. The reversal of 620244304 is 403442026.

It can be written as a sum of positive squares in only one way, i.e., 602604304 + 17640000 = 24548^2 + 4200^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620244301) 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 as a sum of consecutive naturals, namely, 19382619 + ... + 19382650.

It is an arithmetic number, because the mean of its divisors is an integer number (120172337).

Almost surely, 2^620244304 is an apocalyptic number.

It is an amenable number.

620244304 is a deficient number, since it is larger than the sum of its proper divisors (581479066).

620244304 is a wasteful number, since it uses less digits than its factorization.

620244304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38765277 (or 38765271 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 620244304 is about 24904.7044551828. The cubic root of 620244304 is about 852.8138828060.

The spelling of 620244304 in words is "six hundred twenty million, two hundred forty-four thousand, three hundred four".