28536488 has 16 divisors (see below), whose sum is σ = 53608500. Its totient is φ = 14240896.

The previous prime is 28536481. The next prime is 28536511. The reversal of 28536488 is 88463582.

It can be written as a sum of positive squares in 2 ways, for example, as 26399044 + 2137444 = 5138^2 + 1462^2 .

It is a super-2 number, since 2×28536488² = 1628662294748288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28536481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418 + ... + 7686.

Almost surely, 2^28536488 is an apocalyptic number.

It is an amenable number.

28536488 is a deficient number, since it is larger than the sum of its proper divisors (25072012).

28536488 is a wasteful number, since it uses less digits than its factorization.

28536488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844 (or 6840 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 28536488 is about 5341.9554472122. The cubic root of 28536488 is about 305.5860379850.

It can be divided in two parts, 285 and 36488, that multiplied together give a triangular number (10399080 = T₄₅₆₀).

The spelling of 28536488 in words is "twenty-eight million, five hundred thirty-six thousand, four hundred eighty-eight".