18045937 has 16 divisors (see below), whose sum is σ = 22930432. Its totient is φ = 13815360.

The previous prime is 18045919. The next prime is 18045949. The reversal of 18045937 is 73954081.

It is not a de Polignac number, because 18045937 - 2⁷ = 18045809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18045896 and 18045905.

It is not an unprimeable number, because it can be changed into a prime (18045997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (1433152).

Almost surely, 2^18045937 is an apocalyptic number.

It is an amenable number.

18045937 is a deficient number, since it is larger than the sum of its proper divisors (4884495).

18045937 is a wasteful number, since it uses less digits than its factorization.

18045937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 18045937 is about 4248.0509648544. The cubic root of 18045937 is about 262.2968926232.

The spelling of 18045937 in words is "eighteen million, forty-five thousand, nine hundred thirty-seven".