13404242 has 8 divisors (see below), whose sum is σ = 20208000. Its totient is φ = 6668244.

The previous prime is 13404241. The next prime is 13404247. The reversal of 13404242 is 24240431.

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13404241) 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, 16442 + ... + 17237.

It is an arithmetic number, because the mean of its divisors is an integer number (2526000).

Almost surely, 2^13404242 is an apocalyptic number.

13404242 is a deficient number, since it is larger than the sum of its proper divisors (6803758).

13404242 is a wasteful number, since it uses less digits than its factorization.

13404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 13404242 is about 3661.1804107419. The cubic root of 13404242 is about 237.5458349211.

Adding to 13404242 its reverse (24240431), we get a palindrome (37644673).

The spelling of 13404242 in words is "thirteen million, four hundred four thousand, two hundred forty-two".