28554272 has 12 divisors (see below), whose sum is σ = 56216286. Its totient is φ = 14277120.

The previous prime is 28554263. The next prime is 28554287. The reversal of 28554272 is 27245582.

It can be written as a sum of positive squares in only one way, i.e., 27920656 + 633616 = 5284^2 + 796^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446129 + ... + 446192.

Almost surely, 2^28554272 is an apocalyptic number.

It is an amenable number.

28554272 is a deficient number, since it is larger than the sum of its proper divisors (27662014).

28554272 is an equidigital number, since it uses as much as digits as its factorization.

28554272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892331 (or 892323 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 28554272 is about 5343.6197469506. The cubic root of 28554272 is about 305.6495054253.

The spelling of 28554272 in words is "twenty-eight million, five hundred fifty-four thousand, two hundred seventy-two".