18370116 has 36 divisors (see below), whose sum is σ = 47519472. Its totient is φ = 5980464.

The previous prime is 18370109. The next prime is 18370117. The reversal of 18370116 is 61107381.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18370116² = 674922323706912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18370116.

It is not an unprimeable number, because it can be changed into a prime (18370117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4386 + ... + 7481.

Almost surely, 2^18370116 is an apocalyptic number.

It is an amenable number.

18370116 is an abundant number, since it is smaller than the sum of its proper divisors (29149356).

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

18370116 is a wasteful number, since it uses less digits than its factorization.

18370116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11915 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 18370116 is about 4286.0373306820. The cubic root of 18370116 is about 263.8582227724.

Adding to 18370116 its reverse (61107381), we get a palindrome (79477497).

The spelling of 18370116 in words is "eighteen million, three hundred seventy thousand, one hundred sixteen".