38620520 has 32 divisors (see below), whose sum is σ = 87414120. Its totient is φ = 15356160.

The previous prime is 38620507. The next prime is 38620523. The reversal of 38620520 is 2502683.

38620520 = T₉₆ + T₉₇ + ... + T₆₁₄.

It can be written as a sum of positive squares in 4 ways, for example, as 34833604 + 3786916 = 5902^2 + 1946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38620520.

It is not an unprimeable number, because it can be changed into a prime (38620523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130 + ... + 9710.

Almost surely, 2^38620520 is an apocalyptic number.

It is an amenable number.

38620520 is an abundant number, since it is smaller than the sum of its proper divisors (48793600).

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

38620520 is a wasteful number, since it uses less digits than its factorization.

38620520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765 (or 5761 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 38620520 is about 6214.5410128182. The cubic root of 38620520 is about 338.0176455197.

The spelling of 38620520 in words is "thirty-eight million, six hundred twenty thousand, five hundred twenty".