18348082 has 4 divisors (see below), whose sum is σ = 27522126. Its totient is φ = 9174040.

The previous prime is 18348061. The next prime is 18348103. The reversal of 18348082 is 28084381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28084381 = 13 ⋅2160337.

It is an interprime number because it is at equal distance from previous prime (18348061) and next prime (18348103).

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 6507601 = 3441^2 + 2551^2 .

It is a super-2 number, since 2×18348082² = 673304226157448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4587019 + ... + 4587022.

Almost surely, 2^18348082 is an apocalyptic number.

18348082 is a deficient number, since it is larger than the sum of its proper divisors (9174044).

18348082 is an equidigital number, since it uses as much as digits as its factorization.

18348082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174043.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18348082 is about 4283.4661198613. The cubic root of 18348082 is about 263.7526858213.

It can be divided in two parts, 18 and 348082, that added together give a square (348100 = 590²).

The spelling of 18348082 in words is "eighteen million, three hundred forty-eight thousand, eighty-two".