27420418 has 4 divisors (see below), whose sum is σ = 41130630. Its totient is φ = 13710208.

The previous prime is 27420403. The next prime is 27420433. The reversal of 27420418 is 81402472.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (27420403) and next prime (27420433).

It can be written as a sum of positive squares in only one way, i.e., 18378369 + 9042049 = 4287^2 + 3007^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6855103 + ... + 6855106.

Almost surely, 2^27420418 is an apocalyptic number.

27420418 is a deficient number, since it is larger than the sum of its proper divisors (13710212).

27420418 is a wasteful number, since it uses less digits than its factorization.

27420418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13710211.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 27420418 is about 5236.4508973159. The cubic root of 27420418 is about 301.5490909928.

The spelling of 27420418 in words is "twenty-seven million, four hundred twenty thousand, four hundred eighteen".