18194942 has 8 divisors (see below), whose sum is σ = 27311256. Its totient is φ = 9091192.

The previous prime is 18194903. The next prime is 18194963. The reversal of 18194942 is 24949181.

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 = 18194896 and 18194905.

It is a congruent number.

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, 2528 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (3413907).

Almost surely, 2^18194942 is an apocalyptic number.

18194942 is a deficient number, since it is larger than the sum of its proper divisors (9116314).

18194942 is a wasteful number, since it uses less digits than its factorization.

18194942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282.

The product of its digits is 20736, while the sum is 38.

The square root of 18194942 is about 4265.5529536040. The cubic root of 18194942 is about 263.0168417268.

The spelling of 18194942 in words is "eighteen million, one hundred ninety-four thousand, nine hundred forty-two".