13726340 has 12 divisors (see below), whose sum is σ = 28825356. Its totient is φ = 5490528.

The previous prime is 13726333. The next prime is 13726351. The reversal of 13726340 is 4362731.

It can be written as a sum of positive squares in 2 ways, for example, as 5234944 + 8491396 = 2288^2 + 2914^2 .

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, 343139 + ... + 343178.

It is an arithmetic number, because the mean of its divisors is an integer number (2402113).

Almost surely, 2^13726340 is an apocalyptic number.

13726340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13726340 is an abundant number, since it is smaller than the sum of its proper divisors (15099016).

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

13726340 is a wasteful number, since it uses less digits than its factorization.

13726340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686326 (or 686324 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 13726340 is about 3704.9075562016. The cubic root of 13726340 is about 239.4335018477.

The spelling of 13726340 in words is "thirteen million, seven hundred twenty-six thousand, three hundred forty".