28556352 has 84 divisors (see below), whose sum is σ = 89312496. Its totient is φ = 8651520.

The previous prime is 28556321. The next prime is 28556371. The reversal of 28556352 is 25365582.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 4083 + ... + 8589.

It is an arithmetic number, because the mean of its divisors is an integer number (1063244).

Almost surely, 2^28556352 is an apocalyptic number.

28556352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28556352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44656248).

28556352 is an abundant number, since it is smaller than the sum of its proper divisors (60756144).

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

28556352 is a wasteful number, since it uses less digits than its factorization.

28556352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536 (or 4523 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 28556352 is about 5343.8143680334. The cubic root of 28556352 is about 305.6569267963.

The spelling of 28556352 in words is "twenty-eight million, five hundred fifty-six thousand, three hundred fifty-two".