13040418 has 16 divisors (see below), whose sum is σ = 26335296. Its totient is φ = 4304400.

The previous prime is 13040381. The next prime is 13040449. The reversal of 13040418 is 81404031.

It is a super-2 number, since 2×13040418² = 340105003229448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13040394 and 13040403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9933 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (1645956).

Almost surely, 2^13040418 is an apocalyptic number.

13040418 is an abundant number, since it is smaller than the sum of its proper divisors (13294878).

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

13040418 is a wasteful number, since it uses less digits than its factorization.

13040418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21209.

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

The square root of 13040418 is about 3611.1518937868. The cubic root of 13040418 is about 235.3768993452.

Adding to 13040418 its reverse (81404031), we get a palindrome (94444449).

The spelling of 13040418 in words is "thirteen million, forty thousand, four hundred eighteen".