18319796 has 12 divisors (see below), whose sum is σ = 34974240. Its totient is φ = 8327160.

The previous prime is 18319757. The next prime is 18319811. The reversal of 18319796 is 69791381.

It is a super-2 number, since 2×18319796² = 671229850963232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 416359 = 18319796 / (1 + 8 + 3 + 1 + 9 + 7 + 9 + 6).

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, 208136 + ... + 208223.

It is an arithmetic number, because the mean of its divisors is an integer number (2914520).

Almost surely, 2^18319796 is an apocalyptic number.

It is an amenable number.

18319796 is a deficient number, since it is larger than the sum of its proper divisors (16654444).

18319796 is a wasteful number, since it uses less digits than its factorization.

18319796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416374 (or 416372 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 18319796 is about 4280.1630810052. The cubic root of 18319796 is about 263.6170795393.

The spelling of 18319796 in words is "eighteen million, three hundred nineteen thousand, seven hundred ninety-six".