27940432 has 30 divisors (see below), whose sum is σ = 58624782. Its totient is φ = 12894336.

The previous prime is 27940421. The next prime is 27940447. The reversal of 27940432 is 23404972.

It can be written as a sum of positive squares in 3 ways, for example, as 440896 + 27499536 = 664^2 + 5244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27940394 and 27940403.

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, 2463 + ... + 7870.

Almost surely, 2^27940432 is an apocalyptic number.

It is an amenable number.

27940432 is an abundant number, since it is smaller than the sum of its proper divisors (30684350).

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

27940432 is a wasteful number, since it uses less digits than its factorization.

27940432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367 (or 10348 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 27940432 is about 5285.8709783724. The cubic root of 27940432 is about 303.4434067638.

The spelling of 27940432 in words is "twenty-seven million, nine hundred forty thousand, four hundred thirty-two".