27990332 has 24 divisors (see below), whose sum is σ = 50151360. Its totient is φ = 13665600.

The previous prime is 27990323. The next prime is 27990343. The reversal of 27990332 is 23309972.

It is a junction number, because it is equal to n+sod(n) for n = 27990292 and 27990301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31478 + ... + 32354.

It is an arithmetic number, because the mean of its divisors is an integer number (2089640).

Almost surely, 2^27990332 is an apocalyptic number.

It is an amenable number.

27990332 is a deficient number, since it is larger than the sum of its proper divisors (22161028).

27990332 is a wasteful number, since it uses less digits than its factorization.

27990332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 27990332 is about 5290.5890031262. The cubic root of 27990332 is about 303.6239434712.

The spelling of 27990332 in words is "twenty-seven million, nine hundred ninety thousand, three hundred thirty-two".