18719324 has 12 divisors (see below), whose sum is σ = 35278824. Its totient is φ = 8639664.

The previous prime is 18719303. The next prime is 18719341. The reversal of 18719324 is 42391781.

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, 179942 + ... + 180045.

It is an arithmetic number, because the mean of its divisors is an integer number (2939902).

Almost surely, 2^18719324 is an apocalyptic number.

It is an amenable number.

18719324 is a deficient number, since it is larger than the sum of its proper divisors (16559500).

18719324 is a wasteful number, since it uses less digits than its factorization.

18719324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360004 (or 360002 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 18719324 is about 4326.5834095739. The cubic root of 18719324 is about 265.5196827052.

The spelling of 18719324 in words is "eighteen million, seven hundred nineteen thousand, three hundred twenty-four".