18405068 has 24 divisors (see below), whose sum is σ = 35437584. Its totient is φ = 8363520.

The previous prime is 18405061. The next prime is 18405089. The reversal of 18405068 is 86050481.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (18405061) 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, 3596 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (1476566).

Almost surely, 2^18405068 is an apocalyptic number.

It is an amenable number.

18405068 is a deficient number, since it is larger than the sum of its proper divisors (17032516).

18405068 is a wasteful number, since it uses less digits than its factorization.

18405068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18405068 is about 4290.1128190294. The cubic root of 18405068 is about 264.0254605074.

The spelling of 18405068 in words is "eighteen million, four hundred five thousand, sixty-eight".