13404018 has 32 divisors (see below), whose sum is σ = 27801792. Its totient is φ = 4305600.

The previous prime is 13404011. The next prime is 13404029. The reversal of 13404018 is 81040431.

13404018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13403985 and 13404003.

It is not an unprimeable number, because it can be changed into a prime (13404011) 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, 19053 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (868806).

Almost surely, 2^13404018 is an apocalyptic number.

13404018 is an abundant number, since it is smaller than the sum of its proper divisors (14397774).

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

13404018 is a wasteful number, since it uses less digits than its factorization.

13404018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13404018 is about 3661.1498193873. The cubic root of 13404018 is about 237.5445116941.

Adding to 13404018 its reverse (81040431), we get a palindrome (94444449).

The spelling of 13404018 in words is "thirteen million, four hundred four thousand, eighteen".