38520080 has 20 divisors (see below), whose sum is σ = 89559372. Its totient is φ = 15408000.

The previous prime is 38520077. The next prime is 38520089. The reversal of 38520080 is 8002583.

It can be written as a sum of positive squares in 2 ways, for example, as 22391824 + 16128256 = 4732^2 + 4016^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38520089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240671 + ... + 240830.

Almost surely, 2^38520080 is an apocalyptic number.

It is an amenable number.

38520080 is an abundant number, since it is smaller than the sum of its proper divisors (51039292).

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

38520080 is a wasteful number, since it uses less digits than its factorization.

38520080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481514 (or 481508 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 38520080 is about 6206.4547045797. The cubic root of 38520080 is about 337.7243647588.

The spelling of 38520080 in words is "thirty-eight million, five hundred twenty thousand, eighty".