18344316 has 48 divisors (see below), whose sum is σ = 44489984. Its totient is φ = 5878656.

The previous prime is 18344311. The next prime is 18344321. The reversal of 18344316 is 61344381.

It is an interprime number because it is at equal distance from previous prime (18344311) and next prime (18344321).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18344311) 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, 37425 + ... + 37911.

Almost surely, 2^18344316 is an apocalyptic number.

It is an amenable number.

18344316 is an abundant number, since it is smaller than the sum of its proper divisors (26145668).

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

18344316 is a wasteful number, since it uses less digits than its factorization.

18344316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 18344316 is about 4283.0265000348. The cubic root of 18344316 is about 263.7346392378.

Adding to 18344316 its reverse (61344381), we get a palindrome (79688697).

The spelling of 18344316 in words is "eighteen million, three hundred forty-four thousand, three hundred sixteen".