18235316 has 48 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 7728000.

The previous prime is 18235309. The next prime is 18235337. The reversal of 18235316 is 61353281.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39326 + ... + 39786.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^18235316 is an apocalyptic number.

It is an amenable number.

18235316 is an abundant number, since it is smaller than the sum of its proper divisors (19020364).

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

18235316 is a wasteful number, since it uses less digits than its factorization.

18235316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 18235316 is about 4270.2828946101. The cubic root of 18235316 is about 263.2112400234.

Adding to 18235316 its reverse (61353281), we get a palindrome (79588597).

The spelling of 18235316 in words is "eighteen million, two hundred thirty-five thousand, three hundred sixteen".