18696442 has 8 divisors (see below), whose sum is σ = 28087776. Its totient is φ = 9333852.

The previous prime is 18696427. The next prime is 18696463. The reversal of 18696442 is 24469681.

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 = 18696395 and 18696404.

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, 5478 + ... + 8209.

It is an arithmetic number, because the mean of its divisors is an integer number (3510972).

Almost surely, 2^18696442 is an apocalyptic number.

18696442 is a deficient number, since it is larger than the sum of its proper divisors (9391334).

18696442 is a wasteful number, since it uses less digits than its factorization.

18696442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14372.

The product of its digits is 82944, while the sum is 40.

The square root of 18696442 is about 4323.9382511780. The cubic root of 18696442 is about 265.4114505450.

The spelling of 18696442 in words is "eighteen million, six hundred ninety-six thousand, four hundred forty-two".