18160394 has 8 divisors (see below), whose sum is σ = 31132128. Its totient is φ = 7783020.

The previous prime is 18160379. The next prime is 18160411. The reversal of 18160394 is 49306181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18160394.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648572 + ... + 648599.

It is an arithmetic number, because the mean of its divisors is an integer number (3891516).

Almost surely, 2^18160394 is an apocalyptic number.

18160394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18160394 is a deficient number, since it is larger than the sum of its proper divisors (12971734).

18160394 is a wasteful number, since it uses less digits than its factorization.

18160394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297180.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18160394 is about 4261.5013786223. The cubic root of 18160394 is about 262.8502668052.

The spelling of 18160394 in words is "eighteen million, one hundred sixty thousand, three hundred ninety-four".