28044712 has 16 divisors (see below), whose sum is σ = 53703360. Its totient is φ = 13723824.

The previous prime is 28044707. The next prime is 28044727. The reversal of 28044712 is 21744082.

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, 36918 + ... + 37669.

It is an arithmetic number, because the mean of its divisors is an integer number (3356460).

Almost surely, 2^28044712 is an apocalyptic number.

It is an amenable number.

28044712 is a deficient number, since it is larger than the sum of its proper divisors (25658648).

28044712 is a wasteful number, since it uses less digits than its factorization.

28044712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74640 (or 74636 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 28044712 is about 5295.7258237186. The cubic root of 28044712 is about 303.8204445217.

Adding to 28044712 its reverse (21744082), we get a palindrome (49788794).

The spelling of 28044712 in words is "twenty-eight million, forty-four thousand, seven hundred twelve".