27940390 has 16 divisors (see below), whose sum is σ = 50657040. Its totient is φ = 11095200.

The previous prime is 27940387. The next prime is 27940391. The reversal of 27940390 is 9304972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27940391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8661 + ... + 11440.

It is an arithmetic number, because the mean of its divisors is an integer number (3166065).

Almost surely, 2^27940390 is an apocalyptic number.

27940390 is a deficient number, since it is larger than the sum of its proper divisors (22716650).

27940390 is a wasteful number, since it uses less digits than its factorization.

27940390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20247.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 27940390 is about 5285.8670055157. The cubic root of 27940390 is about 303.4432547186.

The spelling of 27940390 in words is "twenty-seven million, nine hundred forty thousand, three hundred ninety".