18349116 has 12 divisors (see below), whose sum is σ = 42814632. Its totient is φ = 6116368.

The previous prime is 18349081. The next prime is 18349127. The reversal of 18349116 is 61194381.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764535 + ... + 764558.

It is an arithmetic number, because the mean of its divisors is an integer number (3567886).

Almost surely, 2^18349116 is an apocalyptic number.

It is an amenable number.

18349116 is an abundant number, since it is smaller than the sum of its proper divisors (24465516).

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

18349116 is a wasteful number, since it uses less digits than its factorization.

18349116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529100 (or 1529098 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 18349116 is about 4283.5868148084. The cubic root of 18349116 is about 263.7576402929.

The spelling of 18349116 in words is "eighteen million, three hundred forty-nine thousand, one hundred sixteen".