18046742 has 8 divisors (see below), whose sum is σ = 30937296. Its totient is φ = 7734312.

The previous prime is 18046739. The next prime is 18046783. The reversal of 18046742 is 24764081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18046699 and 18046708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644513 + ... + 644540.

It is an arithmetic number, because the mean of its divisors is an integer number (3867162).

Almost surely, 2^18046742 is an apocalyptic number.

18046742 is a deficient number, since it is larger than the sum of its proper divisors (12890554).

18046742 is a wasteful number, since it uses less digits than its factorization.

18046742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289062.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 18046742 is about 4248.1457131318. The cubic root of 18046742 is about 262.3007927783.

The spelling of 18046742 in words is "eighteen million, forty-six thousand, seven hundred forty-two".