28542244 has 12 divisors (see below), whose sum is σ = 51299164. Its totient is φ = 13885344.

The previous prime is 28542221. The next prime is 28542259. The reversal of 28542244 is 44224582.

It can be written as a sum of positive squares in 2 ways, for example, as 23425600 + 5116644 = 4840^2 + 2262^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 96279 + ... + 96574.

Almost surely, 2^28542244 is an apocalyptic number.

It is an amenable number.

28542244 is a deficient number, since it is larger than the sum of its proper divisors (22756920).

28542244 is a wasteful number, since it uses less digits than its factorization.

28542244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192894 (or 192892 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 28542244 is about 5342.4941740726. The cubic root of 28542244 is about 305.6065828512.

The spelling of 28542244 in words is "twenty-eight million, five hundred forty-two thousand, two hundred forty-four".