38898280 has 32 divisors (see below), whose sum is σ = 90541800. Its totient is φ = 15022336.

The previous prime is 38898271. The next prime is 38898283. The reversal of 38898280 is 8289883.

It can be written as a sum of positive squares in 4 ways, for example, as 35593156 + 3305124 = 5966^2 + 1818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38898280.

It is not an unprimeable number, because it can be changed into a prime (38898283) 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, 15607 + ... + 17926.

Almost surely, 2^38898280 is an apocalyptic number.

It is an amenable number.

38898280 is an abundant number, since it is smaller than the sum of its proper divisors (51643520).

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

38898280 is a wasteful number, since it uses less digits than its factorization.

38898280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33573 (or 33569 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 38898280 is about 6236.8485631768. The cubic root of 38898280 is about 338.8260550989.

The spelling of 38898280 in words is "thirty-eight million, eight hundred ninety-eight thousand, two hundred eighty".