28880604 has 24 divisors (see below), whose sum is σ = 74875920. Its totient is φ = 9626832.

The previous prime is 28880587. The next prime is 28880611. The reversal of 28880604 is 40608882.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133599 + ... + 133814.

It is an arithmetic number, because the mean of its divisors is an integer number (3119830).

Almost surely, 2^28880604 is an apocalyptic number.

It is an amenable number.

28880604 is an abundant number, since it is smaller than the sum of its proper divisors (45995316).

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

28880604 is a wasteful number, since it uses less digits than its factorization.

28880604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267426 (or 267418 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28880604 is about 5374.0677331050. The cubic root of 28880604 is about 306.8094677301.

The spelling of 28880604 in words is "twenty-eight million, eight hundred eighty thousand, six hundred four".