13404346 has 8 divisors (see below), whose sum is σ = 20235060. Its totient is φ = 6659328.

The previous prime is 13404343. The next prime is 13404373. The reversal of 13404346 is 64340431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12996025 + 408321 = 3605^2 + 639^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13404346.

It is not an unprimeable number, because it can be changed into a prime (13404343) 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, 21031 + ... + 21658.

Almost surely, 2^13404346 is an apocalyptic number.

13404346 is a deficient number, since it is larger than the sum of its proper divisors (6830714).

13404346 is a wasteful number, since it uses less digits than its factorization.

13404346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42848.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 13404346 is about 3661.1946137839. The cubic root of 13404346 is about 237.5464492715.

Adding to 13404346 its reverse (64340431), we get a palindrome (77744777).

The spelling of 13404346 in words is "thirteen million, four hundred four thousand, three hundred forty-six".