28700352 has 112 divisors (see below), whose sum is σ = 89428320. Its totient is φ = 8994816.

The previous prime is 28700333. The next prime is 28700381. The reversal of 28700352 is 25300782.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

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, 28888 + ... + 29864.

Almost surely, 2^28700352 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 28700352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44714160).

28700352 is an abundant number, since it is smaller than the sum of its proper divisors (60727968).

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

28700352 is a wasteful number, since it uses less digits than its factorization.

28700352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 28700352 is about 5357.2709470401. The cubic root of 28700352 is about 306.1698403559.

The spelling of 28700352 in words is "twenty-eight million, seven hundred thousand, three hundred fifty-two".