28542112 has 24 divisors (see below), whose sum is σ = 56440692. Its totient is φ = 14208000.

The previous prime is 28542089. The next prime is 28542131. The reversal of 28542112 is 21124582.

It can be written as a sum of positive squares in 2 ways, for example, as 28344976 + 197136 = 5324^2 + 444^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5862 + ... + 9562.

Almost surely, 2^28542112 is an apocalyptic number.

It is an amenable number.

28542112 is a deficient number, since it is larger than the sum of its proper divisors (27898580).

28542112 is a wasteful number, since it uses less digits than its factorization.

28542112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952 (or 3944 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 28542112 is about 5342.4818202779. The cubic root of 28542112 is about 305.6061117351.

Adding to 28542112 its reverse (21124582), we get a palindrome (49666694).

The spelling of 28542112 in words is "twenty-eight million, five hundred forty-two thousand, one hundred twelve".