18535044 has 24 divisors (see below), whose sum is σ = 47180448. Its totient is φ = 5616640.

The previous prime is 18535043. The next prime is 18535063. The reversal of 18535044 is 44053581.

It is not an unprimeable number, because it can be changed into a prime (18535043) 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, 70077 + ... + 70340.

It is an arithmetic number, because the mean of its divisors is an integer number (1965852).

Almost surely, 2^18535044 is an apocalyptic number.

It is an amenable number.

18535044 is an abundant number, since it is smaller than the sum of its proper divisors (28645404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18535044 is a wasteful number, since it uses less digits than its factorization.

18535044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140435 (or 140433 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 18535044 is about 4305.2344883874. The cubic root of 18535044 is about 264.6455162970.

The spelling of 18535044 in words is "eighteen million, five hundred thirty-five thousand, forty-four".