18235982 has 8 divisors (see below), whose sum is σ = 27379200. Its totient is φ = 9109584.

The previous prime is 18235981. The next prime is 18236017. The reversal of 18235982 is 28953281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18235981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 6122.

It is an arithmetic number, because the mean of its divisors is an integer number (3422400).

Almost surely, 2^18235982 is an apocalyptic number.

18235982 is a deficient number, since it is larger than the sum of its proper divisors (9143218).

18235982 is a wasteful number, since it uses less digits than its factorization.

18235982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410.

The product of its digits is 34560, while the sum is 38.

The square root of 18235982 is about 4270.3608746803. The cubic root of 18235982 is about 263.2144443652.

The spelling of 18235982 in words is "eighteen million, two hundred thirty-five thousand, nine hundred eighty-two".