13430444 has 12 divisors (see below), whose sum is σ = 23530584. Its totient is φ = 6707424.

The previous prime is 13430441. The next prime is 13430447. The reversal of 13430444 is 44403431.

It is an interprime number because it is at equal distance from previous prime (13430441) and next prime (13430447).

It is not an unprimeable number, because it can be changed into a prime (13430441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (1960882).

Almost surely, 2^13430444 is an apocalyptic number.

It is an amenable number.

13430444 is a deficient number, since it is larger than the sum of its proper divisors (10100140).

13430444 is a wasteful number, since it uses less digits than its factorization.

13430444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 13430444 is about 3664.7570178663. The cubic root of 13430444 is about 237.7005154266.

Adding to 13430444 its reverse (44403431), we get a palindrome (57833875).

The spelling of 13430444 in words is "thirteen million, four hundred thirty thousand, four hundred forty-four".