18000770 has 16 divisors (see below), whose sum is σ = 33447168. Its totient is φ = 6967920.

The previous prime is 18000769. The next prime is 18000779. The reversal of 18000770 is 7700081.

It is not an unprimeable number, because it can be changed into a prime (18000779) 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, 28724 + ... + 29343.

It is an arithmetic number, because the mean of its divisors is an integer number (2090448).

Almost surely, 2^18000770 is an apocalyptic number.

18000770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18000770 is a deficient number, since it is larger than the sum of its proper divisors (15446398).

18000770 is a wasteful number, since it uses less digits than its factorization.

18000770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58105.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 18000770 is about 4242.7314315191. The cubic root of 18000770 is about 262.0778763507.

The spelling of 18000770 in words is "eighteen million, seven hundred seventy", and thus it is an aban number.