38505280 has 56 divisors (see below), whose sum is σ = 100035360. Its totient is φ = 14000640.

The previous prime is 38505251. The next prime is 38505281. The reversal of 38505280 is 8250583.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38505281) 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, 1950 + ... + 8989.

Almost surely, 2^38505280 is an apocalyptic number.

It is an amenable number.

38505280 is an abundant number, since it is smaller than the sum of its proper divisors (61530080).

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

38505280 is a wasteful number, since it uses less digits than its factorization.

38505280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10967 (or 10957 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 38505280 is about 6205.2622829337. The cubic root of 38505280 is about 337.6811062740.

The spelling of 38505280 in words is "thirty-eight million, five hundred five thousand, two hundred eighty".