18333073 has 12 divisors (see below), whose sum is σ = 20360704. Its totient is φ = 16493400.

The previous prime is 18333041. The next prime is 18333083. The reversal of 18333073 is 37033381.

It is not a de Polignac number, because 18333073 - 2⁵ = 18333041 is a prime.

It is a super-2 number, since 2×18333073² = 672203131246658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18333013) 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, 11728 + ... + 13198.

Almost surely, 2^18333073 is an apocalyptic number.

It is an amenable number.

18333073 is a deficient number, since it is larger than the sum of its proper divisors (2027631).

18333073 is a wasteful number, since it uses less digits than its factorization.

18333073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 18333073 is about 4281.7137923967. The cubic root of 18333073 is about 263.6807483481.

The spelling of 18333073 in words is "eighteen million, three hundred thirty-three thousand, seventy-three".