13223004 has 12 divisors (see below), whose sum is σ = 30853704. Its totient is φ = 4407664.

The previous prime is 13223003. The next prime is 13223029. The reversal of 13223004 is 40032231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550947 + ... + 550970.

It is an arithmetic number, because the mean of its divisors is an integer number (2571142).

Almost surely, 2^13223004 is an apocalyptic number.

It is an amenable number.

13223004 is an abundant number, since it is smaller than the sum of its proper divisors (17630700).

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

13223004 is a wasteful number, since it uses less digits than its factorization.

13223004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101924 (or 1101922 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13223004 is about 3636.3448681334. The cubic root of 13223004 is about 236.4703584941.

Adding to 13223004 its reverse (40032231), we get a palindrome (53255235).

The spelling of 13223004 in words is "thirteen million, two hundred twenty-three thousand, four".