18640119 has 16 divisors (see below), whose sum is σ = 25655168. Its totient is φ = 12029472.

The previous prime is 18640103. The next prime is 18640241. The reversal of 18640119 is 91104681.

It is not a de Polignac number, because 18640119 - 2⁴ = 18640103 is a prime.

It is a super-2 number, since 2×18640119² = 694908072668322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18640019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33804 + ... + 34350.

It is an arithmetic number, because the mean of its divisors is an integer number (1603448).

Almost surely, 2^18640119 is an apocalyptic number.

18640119 is a deficient number, since it is larger than the sum of its proper divisors (7015049).

18640119 is a wasteful number, since it uses less digits than its factorization.

18640119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 18640119 is about 4317.4204103840. The cubic root of 18640119 is about 265.1446652862.

The spelling of 18640119 in words is "eighteen million, six hundred forty thousand, one hundred nineteen".