18107436 has 12 divisors (see below), whose sum is σ = 42250712. Its totient is φ = 6035808.

The previous prime is 18107351. The next prime is 18107443. The reversal of 18107436 is 63470181.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754465 + ... + 754488.

Almost surely, 2^18107436 is an apocalyptic number.

It is an amenable number.

18107436 is an abundant number, since it is smaller than the sum of its proper divisors (24143276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18107436 is a wasteful number, since it uses less digits than its factorization.

18107436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508960 (or 1508958 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 18107436 is about 4255.2833043171. The cubic root of 18107436 is about 262.5945165309.

The spelling of 18107436 in words is "eighteen million, one hundred seven thousand, four hundred thirty-six".