18130646 has 8 divisors (see below), whose sum is σ = 27216864. Its totient is φ = 9058360.

The previous prime is 18130627. The next prime is 18130657. The reversal of 18130646 is 64603181.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 851 + ... + 6081.

It is an arithmetic number, because the mean of its divisors is an integer number (3402108).

Almost surely, 2^18130646 is an apocalyptic number.

18130646 is a deficient number, since it is larger than the sum of its proper divisors (9086218).

18130646 is a wasteful number, since it uses less digits than its factorization.

18130646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 18130646 is about 4258.0096289229. The cubic root of 18130646 is about 262.7066659720.

The spelling of 18130646 in words is "eighteen million, one hundred thirty thousand, six hundred forty-six".