18014436 has 36 divisors (see below), whose sum is σ = 49677264. Its totient is φ = 5458800.

The previous prime is 18014417. The next prime is 18014471. The reversal of 18014436 is 63441081.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22350 + ... + 23141.

It is an arithmetic number, because the mean of its divisors is an integer number (1379924).

Almost surely, 2^18014436 is an apocalyptic number.

It is an amenable number.

18014436 is an abundant number, since it is smaller than the sum of its proper divisors (31662828).

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

18014436 is a wasteful number, since it uses less digits than its factorization.

18014436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45512 (or 45507 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 18014436 is about 4244.3416450611. The cubic root of 18014436 is about 262.1441818528.

The spelling of 18014436 in words is "eighteen million, fourteen thousand, four hundred thirty-six".