18394116 has 24 divisors (see below), whose sum is σ = 46221504. Its totient is φ = 5659680.

The previous prime is 18394111. The next prime is 18394121. The reversal of 18394116 is 61149381.

It is an interprime number because it is at equal distance from previous prime (18394111) and next prime (18394121).

It is not an unprimeable number, because it can be changed into a prime (18394111) 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, 58800 + ... + 59111.

It is an arithmetic number, because the mean of its divisors is an integer number (1925896).

Almost surely, 2^18394116 is an apocalyptic number.

It is an amenable number.

18394116 is an abundant number, since it is smaller than the sum of its proper divisors (27827388).

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

18394116 is a wasteful number, since it uses less digits than its factorization.

18394116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117931 (or 117929 counting only the distinct ones).

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

The square root of 18394116 is about 4288.8362057789. The cubic root of 18394116 is about 263.9730803589.

The spelling of 18394116 in words is "eighteen million, three hundred ninety-four thousand, one hundred sixteen".