549712128 has 72 divisors (see below), whose sum is σ = 1672057408. Its totient is φ = 157059072.

The previous prime is 549712109. The next prime is 549712157. The reversal of 549712128 is 821217945.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45751 + ... + 56502.

Almost surely, 2^549712128 is an apocalyptic number.

It is an amenable number.

549712128 is an abundant number, since it is smaller than the sum of its proper divisors (1122345280).

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

549712128 is a wasteful number, since it uses less digits than its factorization.

549712128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102279 (or 102265 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 549712128 is about 23445.9405441539. The cubic root of 549712128 is about 819.1783004099.

The spelling of 549712128 in words is "five hundred forty-nine million, seven hundred twelve thousand, one hundred twenty-eight".