18698042 has 16 divisors (see below), whose sum is σ = 30672864. Its totient is φ = 8478000.

The previous prime is 18698041. The next prime is 18698047. The reversal of 18698042 is 24089681.

It is a junction number, because it is equal to n+sod(n) for n = 18697987 and 18698005.

It is not an unprimeable number, because it can be changed into a prime (18698041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11117 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (1917054).

Almost surely, 2^18698042 is an apocalyptic number.

18698042 is a deficient number, since it is larger than the sum of its proper divisors (11974822).

18698042 is a wasteful number, since it uses less digits than its factorization.

18698042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 18698042 is about 4324.1232637380. The cubic root of 18698042 is about 265.4190214366.

The spelling of 18698042 in words is "eighteen million, six hundred ninety-eight thousand, forty-two".