18442892 has 48 divisors (see below), whose sum is σ = 38045952. Its totient is φ = 7741440.

The previous prime is 18442891. The next prime is 18442967. The reversal of 18442892 is 29824481.

It is not an unprimeable number, because it can be changed into a prime (18442891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27068 + ... + 27740.

It is an arithmetic number, because the mean of its divisors is an integer number (792624).

Almost surely, 2^18442892 is an apocalyptic number.

It is an amenable number.

18442892 is an abundant number, since it is smaller than the sum of its proper divisors (19603060).

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

18442892 is a wasteful number, since it uses less digits than its factorization.

18442892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 18442892 is about 4294.5188321860. The cubic root of 18442892 is about 264.2062017717.

The spelling of 18442892 in words is "eighteen million, four hundred forty-two thousand, eight hundred ninety-two".