28801604 has 48 divisors (see below), whose sum is σ = 59383296. Its totient is φ = 12096000.

The previous prime is 28801603. The next prime is 28801613. The reversal of 28801604 is 40610882.

It is not an unprimeable number, because it can be changed into a prime (28801603) 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, 26879 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (1237152).

Almost surely, 2^28801604 is an apocalyptic number.

It is an amenable number.

28801604 is an abundant number, since it is smaller than the sum of its proper divisors (30581692).

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

28801604 is a wasteful number, since it uses less digits than its factorization.

28801604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28801604 is about 5366.7125877953. The cubic root of 28801604 is about 306.5294634089.

The spelling of 28801604 in words is "twenty-eight million, eight hundred one thousand, six hundred four".