18294442 has 8 divisors (see below), whose sum is σ = 27490176. Its totient is φ = 9131052.

The previous prime is 18294439. The next prime is 18294443. The reversal of 18294442 is 24449281.

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 = 18294398 and 18294407.

It is not an unprimeable number, because it can be changed into a prime (18294443) 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, 6618 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (3436272).

Almost surely, 2^18294442 is an apocalyptic number.

18294442 is a deficient number, since it is larger than the sum of its proper divisors (9195734).

18294442 is a wasteful number, since it uses less digits than its factorization.

18294442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16172.

The product of its digits is 18432, while the sum is 34.

The square root of 18294442 is about 4277.2002525016. The cubic root of 18294442 is about 263.4954109142.

The spelling of 18294442 in words is "eighteen million, two hundred ninety-four thousand, four hundred forty-two".