538689280 has 36 divisors (see below), whose sum is σ = 1290332232. Its totient is φ = 215475200.

The previous prime is 538689271. The next prime is 538689299. The reversal of 538689280 is 82986835.

It is a super-2 number, since 2×538689280² = 580372280773836800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209146 + ... + 211705.

It is an arithmetic number, because the mean of its divisors is an integer number (35842562).

Almost surely, 2^538689280 is an apocalyptic number.

It is an amenable number.

538689280 is an abundant number, since it is smaller than the sum of its proper divisors (751642952).

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

538689280 is an equidigital number, since it uses as much as digits as its factorization.

538689280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420872 (or 420858 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 538689280 is about 23209.6807388641. The cubic root of 538689280 is about 813.6658916548.

The spelling of 538689280 in words is "five hundred thirty-eight million, six hundred eighty-nine thousand, two hundred eighty".