13004421 has 8 divisors (see below), whose sum is σ = 17762304. Its totient is φ = 8458080.

The previous prime is 13004393. The next prime is 13004449. The reversal of 13004421 is 12440031.

13004421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13004393) and next prime (13004449).

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

It is not a de Polignac number, because 13004421 - 2⁵ = 13004389 is a prime.

It is a super-2 number, since 2×13004421² = 338229931090482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13004421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004461) 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, 52741 + ... + 52986.

It is an arithmetic number, because the mean of its divisors is an integer number (2220288).

Almost surely, 2^13004421 is an apocalyptic number.

It is an amenable number.

13004421 is a deficient number, since it is larger than the sum of its proper divisors (4757883).

13004421 is a wasteful number, since it uses less digits than its factorization.

13004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105771.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13004421 is about 3606.1643057409. The cubic root of 13004421 is about 235.1601202400.

Adding to 13004421 its reverse (12440031), we get a palindrome (25444452).

The spelling of 13004421 in words is "thirteen million, four thousand, four hundred twenty-one".