13404642 has 8 divisors (see below), whose sum is σ = 26809296. Its totient is φ = 4468212.

The previous prime is 13404613. The next prime is 13404647. The reversal of 13404642 is 24640431.

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

13404642 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13404647) 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, 1117048 + ... + 1117059.

It is an arithmetic number, because the mean of its divisors is an integer number (3351162).

Almost surely, 2^13404642 is an apocalyptic number.

13404642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13404642 is a wasteful number, since it uses less digits than its factorization.

13404642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234112.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 13404642 is about 3661.2350375249. The cubic root of 13404642 is about 237.5481977897.

The spelling of 13404642 in words is "thirteen million, four hundred four thousand, six hundred forty-two".