13409726 has 8 divisors (see below), whose sum is σ = 21943224. Its totient is φ = 6095320.

The previous prime is 13409717. The next prime is 13409741. The reversal of 13409726 is 62790431.

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

It is a junction number, because it is equal to n+sod(n) for n = 13409692 and 13409701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304745 + ... + 304788.

It is an arithmetic number, because the mean of its divisors is an integer number (2742903).

Almost surely, 2^13409726 is an apocalyptic number.

13409726 is a deficient number, since it is larger than the sum of its proper divisors (8533498).

13409726 is a wasteful number, since it uses less digits than its factorization.

13409726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609546.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 13409726 is about 3661.9292729380. The cubic root of 13409726 is about 237.5782257554.

The spelling of 13409726 in words is "thirteen million, four hundred nine thousand, seven hundred twenty-six".