28402848 has 36 divisors (see below), whose sum is σ = 80771418. Its totient is φ = 9467520.

The previous prime is 28402819. The next prime is 28402879. The reversal of 28402848 is 84820482.

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 13749264 = 3828^2 + 3708^2 .

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

It is a super-2 number, since 2×28402848² = 1613443549022208, which contains 22 as substring.

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

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, 49023 + ... + 49598.

Almost surely, 2^28402848 is an apocalyptic number.

It is an amenable number.

28402848 is an abundant number, since it is smaller than the sum of its proper divisors (52368570).

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

28402848 is a wasteful number, since it uses less digits than its factorization.

28402848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98637 (or 98626 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 28402848 is about 5329.4322399295. The cubic root of 28402848 is about 305.1082586222.

The spelling of 28402848 in words is "twenty-eight million, four hundred two thousand, eight hundred forty-eight".