18000766 has 16 divisors (see below), whose sum is σ = 32200704. Its totient is φ = 7379064.

The previous prime is 18000757. The next prime is 18000767. The reversal of 18000766 is 66700081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000767) 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, 27630 + ... + 28273.

It is an arithmetic number, because the mean of its divisors is an integer number (2012544).

Almost surely, 2^18000766 is an apocalyptic number.

18000766 is a deficient number, since it is larger than the sum of its proper divisors (14199938).

18000766 is a wasteful number, since it uses less digits than its factorization.

18000766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55935.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 18000766 is about 4242.7309601246. The cubic root of 18000766 is about 262.0778569384.

The spelling of 18000766 in words is "eighteen million, seven hundred sixty-six", and thus it is an aban number.