28402752 has 84 divisors (see below), whose sum is σ = 87447120. Its totient is φ = 8112384.

The previous prime is 28402691. The next prime is 28402771. The reversal of 28402752 is 25720482.

It is a tau number, because it is divible by the number of its divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7899 + ... + 10917.

Almost surely, 2^28402752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28402752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43723560).

28402752 is an abundant number, since it is smaller than the sum of its proper divisors (59044368).

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

28402752 is a wasteful number, since it uses less digits than its factorization.

28402752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3031 counting only the distinct ones).

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

The square root of 28402752 is about 5329.4232333340. The cubic root of 28402752 is about 305.1079148724.

The spelling of 28402752 in words is "twenty-eight million, four hundred two thousand, seven hundred fifty-two".