28598880 has 48 divisors (see below), whose sum is σ = 90087984. Its totient is φ = 7626240.

The previous prime is 28598873. The next prime is 28598903. The reversal of 28598880 is 8889582.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 29311 + ... + 30270.

It is an arithmetic number, because the mean of its divisors is an integer number (1876833).

Almost surely, 2^28598880 is an apocalyptic number.

28598880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28598880 is an abundant number, since it is smaller than the sum of its proper divisors (61489104).

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

28598880 is a wasteful number, since it uses less digits than its factorization.

28598880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59599 (or 59591 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The square root of 28598880 is about 5347.7920677603. The cubic root of 28598880 is about 305.8085863423.

The spelling of 28598880 in words is "twenty-eight million, five hundred ninety-eight thousand, eight hundred eighty".