18486745 has 16 divisors (see below), whose sum is σ = 22917888. Its totient is φ = 14307840.

The previous prime is 18486691. The next prime is 18486763. The reversal of 18486745 is 54768481.

It is not a de Polignac number, because 18486745 - 2⁷ = 18486617 is a prime.

It is a Duffinian number.

Its product of digits (215040) is a multiple of the sum of its prime divisors (960).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22390 + ... + 23200.

It is an arithmetic number, because the mean of its divisors is an integer number (1432368).

Almost surely, 2^18486745 is an apocalyptic number.

It is an amenable number.

18486745 is a deficient number, since it is larger than the sum of its proper divisors (4431143).

18486745 is an equidigital number, since it uses as much as digits as its factorization.

18486745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 215040, while the sum is 43.

The square root of 18486745 is about 4299.6214949691. The cubic root of 18486745 is about 264.4154434231.

The spelling of 18486745 in words is "eighteen million, four hundred eighty-six thousand, seven hundred forty-five".