18342042 has 8 divisors (see below), whose sum is σ = 36684096. Its totient is φ = 6114012.

The previous prime is 18342041. The next prime is 18342043. The reversal of 18342042 is 24024381.

It is an interprime number because it is at equal distance from previous prime (18342041) and next prime (18342043).

It is a sphenic number, since it is the product of 3 distinct primes.

18342042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18342041) 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, 1528498 + ... + 1528509.

It is an arithmetic number, because the mean of its divisors is an integer number (4585512).

Almost surely, 2^18342042 is an apocalyptic number.

18342042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18342042 is a wasteful number, since it uses less digits than its factorization.

18342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057012.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 18342042 is about 4282.7610253200. The cubic root of 18342042 is about 263.7237410872.

The spelling of 18342042 in words is "eighteen million, three hundred forty-two thousand, forty-two".