18382542 has 16 divisors (see below), whose sum is σ = 38927952. Its totient is φ = 5767040.

The previous prime is 18382537. The next prime is 18382547. The reversal of 18382542 is 24528381.

It is an interprime number because it is at equal distance from previous prime (18382537) and next prime (18382547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382547) 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, 90009 + ... + 90212.

It is an arithmetic number, because the mean of its divisors is an integer number (2432997).

Almost surely, 2^18382542 is an apocalyptic number.

18382542 is an abundant number, since it is smaller than the sum of its proper divisors (20545410).

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

18382542 is a wasteful number, since it uses less digits than its factorization.

18382542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180243.

The product of its digits is 15360, while the sum is 33.

The square root of 18382542 is about 4287.4866763641. The cubic root of 18382542 is about 263.9177027686.

The spelling of 18382542 in words is "eighteen million, three hundred eighty-two thousand, five hundred forty-two".