18313104 has 20 divisors (see below), whose sum is σ = 47308976. Its totient is φ = 6104352.

The previous prime is 18313103. The next prime is 18313117. The reversal of 18313104 is 40131381.

It is a super-2 number, since 2×18313104² = 670739556229632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18313103) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 190714 + ... + 190809.

Almost surely, 2^18313104 is an apocalyptic number.

It is an amenable number.

18313104 is an abundant number, since it is smaller than the sum of its proper divisors (28995872).

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

18313104 is a wasteful number, since it uses less digits than its factorization.

18313104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381534 (or 381528 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 18313104 is about 4279.3812636875. The cubic root of 18313104 is about 263.5849769193.

Adding to 18313104 its reverse (40131381), we get a palindrome (58444485).

The spelling of 18313104 in words is "eighteen million, three hundred thirteen thousand, one hundred four".