18313016 has 8 divisors (see below), whose sum is σ = 34336920. Its totient is φ = 9156504.

The previous prime is 18312997. The next prime is 18313027. The reversal of 18313016 is 61031381.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 18312982 and 18313000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144556 + ... + 1144571.

It is an arithmetic number, because the mean of its divisors is an integer number (4292115).

Almost surely, 2^18313016 is an apocalyptic number.

It is an amenable number.

18313016 is a deficient number, since it is larger than the sum of its proper divisors (16023904).

18313016 is a wasteful number, since it uses less digits than its factorization.

18313016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289133 (or 2289129 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 18313016 is about 4279.3709818150. The cubic root of 18313016 is about 263.5845547168.

Adding to 18313016 its reverse (61031381), we get a palindrome (79344397).

The spelling of 18313016 in words is "eighteen million, three hundred thirteen thousand, sixteen".