13404423 has 8 divisors (see below), whose sum is σ = 18649728. Its totient is φ = 8547704.

The previous prime is 13404407. The next prime is 13404427. The reversal of 13404423 is 32440431.

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

It is a cyclic number.

It is not a de Polignac number, because 13404423 - 2⁴ = 13404407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13404423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404427) 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, 97065 + ... + 97202.

It is an arithmetic number, because the mean of its divisors is an integer number (2331216).

Almost surely, 2^13404423 is an apocalyptic number.

13404423 is a deficient number, since it is larger than the sum of its proper divisors (5245305).

13404423 is a wasteful number, since it uses less digits than its factorization.

13404423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194293.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13404423 is about 3661.2051294622. The cubic root of 13404423 is about 237.5469041250.

Adding to 13404423 its reverse (32440431), we get a palindrome (45844854).

The spelling of 13404423 in words is "thirteen million, four hundred four thousand, four hundred twenty-three".