538009280 has 28 divisors (see below), whose sum is σ = 1281135360. Its totient is φ = 215203584.

The previous prime is 538009279. The next prime is 538009289. The reversal of 538009280 is 82900835.

It is a super-2 number, since 2×538009280² = 578907970732236800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 538009280.

It is not an unprimeable number, because it can be changed into a prime (538009289) 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, 840320 + ... + 840959.

Almost surely, 2^538009280 is an apocalyptic number.

It is an amenable number.

538009280 is an abundant number, since it is smaller than the sum of its proper divisors (743126080).

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

538009280 is a wasteful number, since it uses less digits than its factorization.

538009280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681296 (or 1681286 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 538009280 is about 23195.0270532285. The cubic root of 538009280 is about 813.3233777037.

The spelling of 538009280 in words is "five hundred thirty-eight million, nine thousand, two hundred eighty".