13404430 has 32 divisors (see below), whose sum is σ = 26276544. Its totient is φ = 4893696.

The previous prime is 13404427. The next prime is 13404451. The reversal of 13404430 is 3440431.

It is a junction number, because it is equal to n+sod(n) for n = 13404398 and 13404407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12079 + ... + 13141.

It is an arithmetic number, because the mean of its divisors is an integer number (821142).

Almost surely, 2^13404430 is an apocalyptic number.

13404430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13404430 is a deficient number, since it is larger than the sum of its proper divisors (12872114).

13404430 is a wasteful number, since it uses less digits than its factorization.

13404430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13404430 is about 3661.2060854314. The cubic root of 13404430 is about 237.5469454752.

Adding to 13404430 its reverse (3440431), we get a palindrome (16844861).

The spelling of 13404430 in words is "thirteen million, four hundred four thousand, four hundred thirty".