13404646 has 8 divisors (see below), whose sum is σ = 20333160. Its totient is φ = 6626928.

The previous prime is 13404613. The next prime is 13404647. The reversal of 13404646 is 64640431.

It is a happy number.

13404646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404647) 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, 37476 + ... + 37831.

It is an arithmetic number, because the mean of its divisors is an integer number (2541645).

Almost surely, 2^13404646 is an apocalyptic number.

13404646 is a deficient number, since it is larger than the sum of its proper divisors (6928514).

13404646 is an equidigital number, since it uses as much as digits as its factorization.

13404646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75398.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 13404646 is about 3661.2355837886. The cubic root of 13404646 is about 237.5482214182.

The spelling of 13404646 in words is "thirteen million, four hundred four thousand, six hundred forty-six".