18372033 has 12 divisors (see below), whose sum is σ = 26577408. Its totient is φ = 12229560.

The previous prime is 18371999. The next prime is 18372049. The reversal of 18372033 is 33027381.

It is not a de Polignac number, because 18372033 - 2⁸ = 18371777 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18371988 and 18372006.

It is not an unprimeable number, because it can be changed into a prime (18372073) 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, 7648 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (2214784).

Almost surely, 2^18372033 is an apocalyptic number.

It is an amenable number.

18372033 is a deficient number, since it is larger than the sum of its proper divisors (8205375).

18372033 is a wasteful number, since it uses less digits than its factorization.

18372033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 18372033 is about 4286.2609579912. The cubic root of 18372033 is about 263.8674006970.

The spelling of 18372033 in words is "eighteen million, three hundred seventy-two thousand, thirty-three".