18000465 has 32 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 8184000.

The previous prime is 18000457. The next prime is 18000469. The reversal of 18000465 is 56400081.

It is not a de Polignac number, because 18000465 - 2³ = 18000457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18000469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26014 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^18000465 is an apocalyptic number.

18000465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18000465 is a deficient number, since it is larger than the sum of its proper divisors (15094191).

18000465 is a wasteful number, since it uses less digits than its factorization.

18000465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18000465 is about 4242.6954875409. The cubic root of 18000465 is about 262.0763961510.

The spelling of 18000465 in words is "eighteen million, four hundred sixty-five", and thus it is an aban number.