38918980 has 24 divisors (see below), whose sum is σ = 81990720. Its totient is φ = 15517920.

The previous prime is 38918969. The next prime is 38918983. The reversal of 38918980 is 8981983.

It is a self number, because there is not a number n which added to its sum of digits gives 38918980.

It is not an unprimeable number, because it can be changed into a prime (38918983) 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, 3681 + ... + 9559.

It is an arithmetic number, because the mean of its divisors is an integer number (3416280).

Almost surely, 2^38918980 is an apocalyptic number.

It is an amenable number.

38918980 is an abundant number, since it is smaller than the sum of its proper divisors (43071740).

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

38918980 is a wasteful number, since it uses less digits than its factorization.

38918980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219 (or 6217 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 38918980 is about 6238.5078344104. The cubic root of 38918980 is about 338.8861473496.

The spelling of 38918980 in words is "thirty-eight million, nine hundred eighteen thousand, nine hundred eighty".