13004402 has 8 divisors (see below), whose sum is σ = 19707996. Its totient is φ = 6435072.

The previous prime is 13004393. The next prime is 13004449. The reversal of 13004402 is 20440031.

It can be written as a sum of positive squares in 2 ways, for example, as 11566801 + 1437601 = 3401^2 + 1199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13004402² = 338228942755208, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 33323 + ... + 33710.

Almost surely, 2^13004402 is an apocalyptic number.

13004402 is a deficient number, since it is larger than the sum of its proper divisors (6703594).

13004402 is an equidigital number, since it uses as much as digits as its factorization.

13004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67132.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13004402 is about 3606.1616713619. The cubic root of 13004402 is about 235.1600057137.

Adding to 13004402 its reverse (20440031), we get a palindrome (33444433).

The spelling of 13004402 in words is "thirteen million, four thousand, four hundred two".