28480536 has 48 divisors (see below), whose sum is σ = 88155600. Its totient is φ = 8137152.

The previous prime is 28480513. The next prime is 28480541. The reversal of 28480536 is 63508482.

It is a super-2 number, since 2×28480536² = 1622281861694592, which contains 22 as substring.

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 28480536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27751 + ... + 28758.

It is an arithmetic number, because the mean of its divisors is an integer number (1836575).

Almost surely, 2^28480536 is an apocalyptic number.

It is an amenable number.

28480536 is an abundant number, since it is smaller than the sum of its proper divisors (59675064).

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

28480536 is a wasteful number, since it uses less digits than its factorization.

28480536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56528 (or 56521 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28480536 is about 5336.7158440374. The cubic root of 28480536 is about 305.3861846479.

The spelling of 28480536 in words is "twenty-eight million, four hundred eighty thousand, five hundred thirty-six".