27481536 has 42 divisors (see below), whose sum is σ = 78772512. Its totient is φ = 9160320.

The previous prime is 27481529. The next prime is 27481541. The reversal of 27481536 is 63518472.

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 27481536.

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 5 ways as a sum of consecutive naturals, for example, 23280 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (1875536).

Almost surely, 2^27481536 is an apocalyptic number.

It is an amenable number.

27481536 is an abundant number, since it is smaller than the sum of its proper divisors (51290976).

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

27481536 is a wasteful number, since it uses less digits than its factorization.

27481536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47729 (or 47716 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 27481536 is about 5242.2834719233. The cubic root of 27481536 is about 301.7729679738.

It can be divided in two parts, 274 and 81536, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 27481536 in words is "twenty-seven million, four hundred eighty-one thousand, five hundred thirty-six".