27440690 has 24 divisors (see below), whose sum is σ = 50072580. Its totient is φ = 10827200.

The previous prime is 27440683. The next prime is 27440711. The reversal of 27440690 is 9604472.

It can be written as a sum of positive squares in 6 ways, for example, as 20349121 + 7091569 = 4511^2 + 2663^2 .

It is a super-2 number, since 2×27440690² = 1505982935352200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101876 + ... + 102144.

Almost surely, 2^27440690 is an apocalyptic number.

27440690 is a deficient number, since it is larger than the sum of its proper divisors (22631890).

27440690 is a wasteful number, since it uses less digits than its factorization.

27440690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 27440690 is about 5238.3862018755. The cubic root of 27440690 is about 301.6233847464.

The spelling of 27440690 in words is "twenty-seven million, four hundred forty thousand, six hundred ninety".