18190082 has 4 divisors (see below), whose sum is σ = 27285126. Its totient is φ = 9095040.

The previous prime is 18190063. The next prime is 18190093. The reversal of 18190082 is 28009181.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11162281 + 7027801 = 3341^2 + 2651^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4547519 + ... + 4547522.

Almost surely, 2^18190082 is an apocalyptic number.

18190082 is a deficient number, since it is larger than the sum of its proper divisors (9095044).

18190082 is an equidigital number, since it uses as much as digits as its factorization.

18190082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095043.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 18190082 is about 4264.9832356060. The cubic root of 18190082 is about 262.9934217441.

The spelling of 18190082 in words is "eighteen million, one hundred ninety thousand, eighty-two".