18047692 has 12 divisors (see below), whose sum is σ = 34013056. Its totient is φ = 8329680.

The previous prime is 18047681. The next prime is 18047707. The reversal of 18047692 is 29674081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173484 + ... + 173587.

Almost surely, 2^18047692 is an apocalyptic number.

It is an amenable number.

18047692 is a deficient number, since it is larger than the sum of its proper divisors (15965364).

18047692 is a wasteful number, since it uses less digits than its factorization.

18047692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347088 (or 347086 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 18047692 is about 4248.2575251508. The cubic root of 18047692 is about 262.3053952966.

The spelling of 18047692 in words is "eighteen million, forty-seven thousand, six hundred ninety-two".