18158342 has 8 divisors (see below), whose sum is σ = 27973776. Its totient is φ = 8833752.

The previous prime is 18158323. The next prime is 18158347. The reversal of 18158342 is 24385181.

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 = 18158299 and 18158308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18158347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122618 + ... + 122765.

It is an arithmetic number, because the mean of its divisors is an integer number (3496722).

Almost surely, 2^18158342 is an apocalyptic number.

18158342 is a deficient number, since it is larger than the sum of its proper divisors (9815434).

18158342 is a wasteful number, since it uses less digits than its factorization.

18158342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245422.

The product of its digits is 7680, while the sum is 32.

The square root of 18158342 is about 4261.2606116031. The cubic root of 18158342 is about 262.8403663397.

The spelling of 18158342 in words is "eighteen million, one hundred fifty-eight thousand, three hundred forty-two".