18489104 has 10 divisors (see below), whose sum is σ = 35822670. Its totient is φ = 9244544.

The previous prime is 18489101. The next prime is 18489131. The reversal of 18489104 is 40198481.

It can be written as a sum of positive squares in only one way, i.e., 18079504 + 409600 = 4252^2 + 640^2 .

It is not an unprimeable number, because it can be changed into a prime (18489101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577769 + ... + 577800.

It is an arithmetic number, because the mean of its divisors is an integer number (3582267).

Almost surely, 2^18489104 is an apocalyptic number.

It is an amenable number.

18489104 is a deficient number, since it is larger than the sum of its proper divisors (17333566).

18489104 is a wasteful number, since it uses less digits than its factorization.

18489104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155577 (or 1155571 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 18489104 is about 4299.8958126913. The cubic root of 18489104 is about 264.4266898504.

The spelling of 18489104 in words is "eighteen million, four hundred eighty-nine thousand, one hundred four".