27400918 has 16 divisors (see below), whose sum is σ = 41713056. Its totient is φ = 13498240.

The previous prime is 27400897. The next prime is 27400921. The reversal of 27400918 is 81900472.

It is a self number, because there is not a number n which added to its sum of digits gives 27400918.

It is a congruent number.

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, 59208 + ... + 59668.

It is an arithmetic number, because the mean of its divisors is an integer number (2607066).

Almost surely, 2^27400918 is an apocalyptic number.

27400918 is a deficient number, since it is larger than the sum of its proper divisors (14312138).

27400918 is a wasteful number, since it uses less digits than its factorization.

27400918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 27400918 is about 5234.5886180291. The cubic root of 27400918 is about 301.4775919402.

The spelling of 27400918 in words is "twenty-seven million, four hundred thousand, nine hundred eighteen".