28570752 has 128 divisors (see below), whose sum is σ = 96451200. Its totient is φ = 8156160.

The previous prime is 28570741. The next prime is 28570769. The reversal of 28570752 is 25707582.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 23602 + ... + 24782.

It is an arithmetic number, because the mean of its divisors is an integer number (753525).

Almost surely, 2^28570752 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 28570752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48225600).

28570752 is an abundant number, since it is smaller than the sum of its proper divisors (67880448).

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

28570752 is a wasteful number, since it uses less digits than its factorization.

28570752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 28570752 is about 5345.1615504117. The cubic root of 28570752 is about 305.7082956373.

The spelling of 28570752 in words is "twenty-eight million, five hundred seventy thousand, seven hundred fifty-two".