27066440 has 16 divisors (see below), whose sum is σ = 60899580. Its totient is φ = 10826560.

The previous prime is 27066439. The next prime is 27066449. The reversal of 27066440 is 4466072.

It can be written as a sum of positive squares in 2 ways, for example, as 26977636 + 88804 = 5194^2 + 298^2 .

It is not an unprimeable number, because it can be changed into a prime (27066449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338291 + ... + 338370.

Almost surely, 2^27066440 is an apocalyptic number.

27066440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27066440 is an abundant number, since it is smaller than the sum of its proper divisors (33833140).

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

27066440 is a wasteful number, since it uses less digits than its factorization.

27066440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676672 (or 676668 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27066440 is about 5202.5416865221. The cubic root of 27066440 is about 300.2458725081.

The spelling of 27066440 in words is "twenty-seven million, sixty-six thousand, four hundred forty".