28052724 has 48 divisors (see below), whose sum is σ = 75067776. Its totient is φ = 7987200.

The previous prime is 28052681. The next prime is 28052747. The reversal of 28052724 is 42725082.

It is a junction number, because it is equal to n+sod(n) for n = 28052691 and 28052700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43444 + ... + 44084.

It is an arithmetic number, because the mean of its divisors is an integer number (1563912).

Almost surely, 2^28052724 is an apocalyptic number.

It is an amenable number.

28052724 is an abundant number, since it is smaller than the sum of its proper divisors (47015052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28052724 is a wasteful number, since it uses less digits than its factorization.

28052724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 28052724 is about 5296.4822288005. The cubic root of 28052724 is about 303.8493742492.

The spelling of 28052724 in words is "twenty-eight million, fifty-two thousand, seven hundred twenty-four".