18357116 has 24 divisors (see below), whose sum is σ = 34986000. Its totient is φ = 8394624.

The previous prime is 18357113. The next prime is 18357149. The reversal of 18357116 is 61175381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18357113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (1457750).

Almost surely, 2^18357116 is an apocalyptic number.

It is an amenable number.

18357116 is a deficient number, since it is larger than the sum of its proper divisors (16628884).

18357116 is a wasteful number, since it uses less digits than its factorization.

18357116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381 (or 8379 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 18357116 is about 4284.5205099287. The cubic root of 18357116 is about 263.7959664724.

The spelling of 18357116 in words is "eighteen million, three hundred fifty-seven thousand, one hundred sixteen".