13409746 has 16 divisors (see below), whose sum is σ = 23083776. Its totient is φ = 5723136.

The previous prime is 13409741. The next prime is 13409761. The reversal of 13409746 is 64790431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13409741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735 + ... + 5461.

It is an arithmetic number, because the mean of its divisors is an integer number (1442736).

Almost surely, 2^13409746 is an apocalyptic number.

13409746 is a deficient number, since it is larger than the sum of its proper divisors (9674030).

13409746 is a wasteful number, since it uses less digits than its factorization.

13409746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13409746 is about 3661.9320037379. The cubic root of 13409746 is about 237.5783438677.

The spelling of 13409746 in words is "thirteen million, four hundred nine thousand, seven hundred forty-six".