28486528 has 32 divisors (see below), whose sum is σ = 64859760. Its totient is φ = 12208128.

The previous prime is 28486517. The next prime is 28486541. The reversal of 28486528 is 82568482.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×28486528² = 1622964554989568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15001 + ... + 16792.

Almost surely, 2^28486528 is an apocalyptic number.

28486528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28486528 is an abundant number, since it is smaller than the sum of its proper divisors (36373232).

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

28486528 is an equidigital number, since it uses as much as digits as its factorization.

28486528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31814 (or 31802 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 28486528 is about 5337.2772084650. The cubic root of 28486528 is about 305.4075998078.

The spelling of 28486528 in words is "twenty-eight million, four hundred eighty-six thousand, five hundred twenty-eight".