28029752 has 8 divisors (see below), whose sum is σ = 52555800. Its totient is φ = 14014872.

The previous prime is 28029713. The next prime is 28029811. The reversal of 28029752 is 25792082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1751852 + ... + 1751867.

It is an arithmetic number, because the mean of its divisors is an integer number (6569475).

Almost surely, 2^28029752 is an apocalyptic number.

It is an amenable number.

28029752 is a deficient number, since it is larger than the sum of its proper divisors (24526048).

28029752 is a wasteful number, since it uses less digits than its factorization.

28029752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503725 (or 3503721 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28029752 is about 5294.3131754742. The cubic root of 28029752 is about 303.7664122052.

Subtracting from 28029752 its reverse (25792082), we obtain a triangular number (2237670 = T₂₁₁₅).

The spelling of 28029752 in words is "twenty-eight million, twenty-nine thousand, seven hundred fifty-two".