28332576 has 36 divisors (see below), whose sum is σ = 80571582. Its totient is φ = 9444096.

The previous prime is 28332547. The next prime is 28332589. The reversal of 28332576 is 67523382.

28332576 is a `hidden beast` number, since 2 + 83 + 3 + 2 + 576 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 2322576 = 5100^2 + 1524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28332576.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48901 + ... + 49476.

Almost surely, 2^28332576 is an apocalyptic number.

It is an amenable number.

28332576 is an abundant number, since it is smaller than the sum of its proper divisors (52239006).

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

28332576 is a wasteful number, since it uses less digits than its factorization.

28332576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98393 (or 98382 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 28332576 is about 5322.8353346689. The cubic root of 28332576 is about 304.8564261996.

The spelling of 28332576 in words is "twenty-eight million, three hundred thirty-two thousand, five hundred seventy-six".