28810452 has 48 divisors (see below), whose sum is σ = 74096064. Its totient is φ = 8640000.

The previous prime is 28810447. The next prime is 28810459. The reversal of 28810452 is 25401882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28810459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12252 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (1543668).

Almost surely, 2^28810452 is an apocalyptic number.

28810452 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 28810452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37048032).

28810452 is an abundant number, since it is smaller than the sum of its proper divisors (45285612).

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

28810452 is a wasteful number, since it uses less digits than its factorization.

28810452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 28810452 is about 5367.5368652670. The cubic root of 28810452 is about 306.5608493345.

The spelling of 28810452 in words is "twenty-eight million, eight hundred ten thousand, four hundred fifty-two".