28802490 has 32 divisors (see below), whose sum is σ = 69552000. Its totient is φ = 7633344.

The previous prime is 28802483. The next prime is 28802491. The reversal of 28802490 is 9420882.

It is not an unprimeable number, because it can be changed into a prime (28802491) 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, 2136 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (2173500).

Almost surely, 2^28802490 is an apocalyptic number.

28802490 is an abundant number, since it is smaller than the sum of its proper divisors (40749510).

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

28802490 is a wasteful number, since it uses less digits than its factorization.

28802490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 28802490 is about 5366.7951330380. The cubic root of 28802490 is about 306.5326065477.

It can be divided in two parts, 28802 and 490, that added together give a palindrome (29292).

The spelling of 28802490 in words is "twenty-eight million, eight hundred two thousand, four hundred ninety".