28552992 has 96 divisors (see below), whose sum is σ = 81793152. Its totient is φ = 8669184.

The previous prime is 28552987. The next prime is 28553009. The reversal of 28552992 is 29925582.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170893 + ... + 171059.

It is an arithmetic number, because the mean of its divisors is an integer number (852012).

Almost surely, 2^28552992 is an apocalyptic number.

It is a pronic number, being equal to 5343×5344.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28552992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40896576).

28552992 is an abundant number, since it is smaller than the sum of its proper divisors (53240160).

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

28552992 is a wasteful number, since it uses less digits than its factorization.

28552992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 322 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 28552992 is about 5343.4999766071. The cubic root of 28552992 is about 305.6449382487.

The spelling of 28552992 in words is "twenty-eight million, five hundred fifty-two thousand, nine hundred ninety-two".