18059982 has 32 divisors (see below), whose sum is σ = 37601280. Its totient is φ = 5775840.

The previous prime is 18059963. The next prime is 18059983. The reversal of 18059982 is 28995081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18059983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46963 + ... + 47345.

It is an arithmetic number, because the mean of its divisors is an integer number (1175040).

Almost surely, 2^18059982 is an apocalyptic number.

18059982 is an abundant number, since it is smaller than the sum of its proper divisors (19541298).

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

18059982 is a wasteful number, since it uses less digits than its factorization.

18059982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 18059982 is about 4249.7037543810. The cubic root of 18059982 is about 262.3649227942.

The spelling of 18059982 in words is "eighteen million, fifty-nine thousand, nine hundred eighty-two".