620944902 has 24 divisors (see below), whose sum is σ = 1346062536. Its totient is φ = 206876736.

The previous prime is 620944889. The next prime is 620944903. The reversal of 620944902 is 209449026.

620944902 is a `hidden beast` number, since 6 + 209 + 449 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620944903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33198 + ... + 48414.

It is an arithmetic number, because the mean of its divisors is an integer number (56085939).

Almost surely, 2^620944902 is an apocalyptic number.

620944902 is an abundant number, since it is smaller than the sum of its proper divisors (725117634).

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

620944902 is a wasteful number, since it uses less digits than its factorization.

620944902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17492 (or 17489 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 620944902 is about 24918.7660609429. The cubic root of 620944902 is about 853.1348611025.

The spelling of 620944902 in words is "six hundred twenty million, nine hundred forty-four thousand, nine hundred two".