620228944 has 10 divisors (see below), whose sum is σ = 1201693610. Its totient is φ = 310114464.

The previous prime is 620228933. The next prime is 620228953. The reversal of 620228944 is 449822026.

It can be written as a sum of positive squares in only one way, i.e., 596336400 + 23892544 = 24420^2 + 4888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19382139 + ... + 19382170.

It is an arithmetic number, because the mean of its divisors is an integer number (120169361).

Almost surely, 2^620228944 is an apocalyptic number.

It is an amenable number.

620228944 is a deficient number, since it is larger than the sum of its proper divisors (581464666).

620228944 is a wasteful number, since it uses less digits than its factorization.

620228944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38764317 (or 38764311 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 620228944 is about 24904.3960778012. The cubic root of 620228944 is about 852.8068429297.

The spelling of 620228944 in words is "six hundred twenty million, two hundred twenty-eight thousand, nine hundred forty-four".