620938368 has 48 divisors (see below), whose sum is σ = 1786818150. Its totient is φ = 206979072.

The previous prime is 620938363. The next prime is 620938391. The reversal of 620938368 is 863839026.

620938368 is a `hidden beast` number, since 6 + 209 + 383 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 390141504 + 230796864 = 19752^2 + 15192^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620938363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268353 + ... + 270656.

Almost surely, 2^620938368 is an apocalyptic number.

It is an amenable number.

620938368 is an abundant number, since it is smaller than the sum of its proper divisors (1165879782).

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

620938368 is a wasteful number, since it uses less digits than its factorization.

620938368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539029 (or 539014 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 620938368 is about 24918.6349545877. The cubic root of 620938368 is about 853.1318686723.

The spelling of 620938368 in words is "six hundred twenty million, nine hundred thirty-eight thousand, three hundred sixty-eight".