27331404 has 12 divisors (see below), whose sum is σ = 63773304. Its totient is φ = 9110464.

The previous prime is 27331397. The next prime is 27331417. The reversal of 27331404 is 40413372.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×27331404² = 1494011289222432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138797 + ... + 1138820.

It is an arithmetic number, because the mean of its divisors is an integer number (5314442).

Almost surely, 2^27331404 is an apocalyptic number.

It is an amenable number.

27331404 is an abundant number, since it is smaller than the sum of its proper divisors (36441900).

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

27331404 is a wasteful number, since it uses less digits than its factorization.

27331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277624 (or 2277622 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 27331404 is about 5227.9445291625. The cubic root of 27331404 is about 301.2224343044. Note that the first 3 decimals are identical.

Adding to 27331404 its reverse (40413372), we get a palindrome (67744776).

The spelling of 27331404 in words is "twenty-seven million, three hundred thirty-one thousand, four hundred four".