554128728 has 16 divisors (see below), whose sum is σ = 1385321880. Its totient is φ = 184709568.

The previous prime is 554128721. The next prime is 554128739. The reversal of 554128728 is 827821455.

It is a self number, because there is not a number n which added to its sum of digits gives 554128728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554128721) 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, 11544325 + ... + 11544372.

Almost surely, 2^554128728 is an apocalyptic number.

It is an amenable number.

554128728 is an abundant number, since it is smaller than the sum of its proper divisors (831193152).

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

554128728 is a wasteful number, since it uses less digits than its factorization.

554128728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23088706 (or 23088702 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 554128728 is about 23539.9389973721. The cubic root of 554128728 is about 821.3663162166.

The spelling of 554128728 in words is "five hundred fifty-four million, one hundred twenty-eight thousand, seven hundred twenty-eight".