18486345 has 16 divisors (see below), whose sum is σ = 30267072. Its totient is φ = 9629760.

The previous prime is 18486331. The next prime is 18486353. The reversal of 18486345 is 54368481.

It is not a de Polignac number, because 18486345 - 2⁴ = 18486329 is a prime.

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, 13686 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (1891692).

Almost surely, 2^18486345 is an apocalyptic number.

18486345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18486345 is a deficient number, since it is larger than the sum of its proper divisors (11780727).

18486345 is a wasteful number, since it uses less digits than its factorization.

18486345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28712.

The product of its digits is 92160, while the sum is 39.

The square root of 18486345 is about 4299.5749789950. The cubic root of 18486345 is about 264.4135363461.

The spelling of 18486345 in words is "eighteen million, four hundred eighty-six thousand, three hundred forty-five".