27640452 has 24 divisors (see below), whose sum is σ = 73708096. Its totient is φ = 7897248.

The previous prime is 27640447. The next prime is 27640471. The reversal of 27640452 is 25404672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164443 + ... + 164610.

Almost surely, 2^27640452 is an apocalyptic number.

It is an amenable number.

27640452 is an abundant number, since it is smaller than the sum of its proper divisors (46067644).

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

27640452 is a wasteful number, since it uses less digits than its factorization.

27640452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329067 (or 329065 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 27640452 is about 5257.4187582881. The cubic root of 27640452 is about 302.3535324446.

The spelling of 27640452 in words is "twenty-seven million, six hundred forty thousand, four hundred fifty-two".