18442059 has 16 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 11530880.

The previous prime is 18442013. The next prime is 18442097. The reversal of 18442059 is 95024481.

It is a cyclic number.

It is not a de Polignac number, because 18442059 - 2¹¹ = 18440011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18442859) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21562 + ... + 22400.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^18442059 is an apocalyptic number.

18442059 is a deficient number, since it is larger than the sum of its proper divisors (7685301).

18442059 is a wasteful number, since it uses less digits than its factorization.

18442059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18442059 is about 4294.4218470011. The cubic root of 18442059 is about 264.2022239596.

The spelling of 18442059 in words is "eighteen million, four hundred forty-two thousand, fifty-nine".