18073307 has 12 divisors (see below), whose sum is σ = 21234096. Its totient is φ = 15336720.

The previous prime is 18073291. The next prime is 18073309. The reversal of 18073307 is 70337081.

It is not a de Polignac number, because 18073307 - 2⁴ = 18073291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18073307.

It is not an unprimeable number, because it can be changed into a prime (18073309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3257 + ... + 6837.

It is an arithmetic number, because the mean of its divisors is an integer number (1769508).

Almost surely, 2^18073307 is an apocalyptic number.

18073307 is a deficient number, since it is larger than the sum of its proper divisors (3160789).

18073307 is a wasteful number, since it uses less digits than its factorization.

18073307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3691 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 18073307 is about 4251.2712216465. The cubic root of 18073307 is about 262.4294328832.

The spelling of 18073307 in words is "eighteen million, seventy-three thousand, three hundred seven".