18086448 has 20 divisors (see below), whose sum is σ = 46723448. Its totient is φ = 6028800.

The previous prime is 18086429. The next prime is 18086473. The reversal of 18086448 is 84468081.

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, 188353 + ... + 188448.

Almost surely, 2^18086448 is an apocalyptic number.

It is an amenable number.

18086448 is an abundant number, since it is smaller than the sum of its proper divisors (28637000).

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

18086448 is a wasteful number, since it uses less digits than its factorization.

18086448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376812 (or 376806 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 18086448 is about 4252.8164785234. The cubic root of 18086448 is about 262.4930211297.

It can be divided in two parts, 1808 and 6448, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 18086448 in words is "eighteen million, eighty-six thousand, four hundred forty-eight".