18073612 has 24 divisors (see below), whose sum is σ = 33611760. Its totient is φ = 8487360.

The previous prime is 18073591. The next prime is 18073613. The reversal of 18073612 is 21637081.

It is not an unprimeable number, because it can be changed into a prime (18073613) 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, 2187 + ... + 6397.

It is an arithmetic number, because the mean of its divisors is an integer number (1400490).

Almost surely, 2^18073612 is an apocalyptic number.

It is an amenable number.

18073612 is a deficient number, since it is larger than the sum of its proper divisors (15538148).

18073612 is a wasteful number, since it uses less digits than its factorization.

18073612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4279 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 18073612 is about 4251.3070931185. The cubic root of 18073612 is about 262.4309091031.

The spelling of 18073612 in words is "eighteen million, seventy-three thousand, six hundred twelve".