28244542 has 16 divisors (see below), whose sum is σ = 43721280. Its totient is φ = 13674528.

The previous prime is 28244527. The next prime is 28244551. The reversal of 28244542 is 24544282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16888 + ... + 18484.

It is an arithmetic number, because the mean of its divisors is an integer number (2732580).

Almost surely, 2^28244542 is an apocalyptic number.

28244542 is a deficient number, since it is larger than the sum of its proper divisors (15476738).

28244542 is a wasteful number, since it uses less digits than its factorization.

28244542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

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

The square root of 28244542 is about 5314.5594361151. The cubic root of 28244542 is about 304.5403521614.

The spelling of 28244542 in words is "twenty-eight million, two hundred forty-four thousand, five hundred forty-two".