18382742 has 32 divisors (see below), whose sum is σ = 32563200. Its totient is φ = 7779240.

The previous prime is 18382733. The next prime is 18382751. The reversal of 18382742 is 24728381.

It is an interprime number because it is at equal distance from previous prime (18382733) and next prime (18382751).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87017 + ... + 87227.

It is an arithmetic number, because the mean of its divisors is an integer number (1017600).

Almost surely, 2^18382742 is an apocalyptic number.

18382742 is a deficient number, since it is larger than the sum of its proper divisors (14180458).

18382742 is a wasteful number, since it uses less digits than its factorization.

18382742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 347 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 18382742 is about 4287.5099999883. The cubic root of 18382742 is about 263.9186598968.

The spelling of 18382742 in words is "eighteen million, three hundred eighty-two thousand, seven hundred forty-two".