13826945 has 16 divisors (see below), whose sum is σ = 18411840. Its totient is φ = 9883200.

The previous prime is 13826941. The next prime is 13826947. The reversal of 13826945 is 54962831.

It is a happy number.

It is not a de Polignac number, because 13826945 - 2² = 13826941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13826899 and 13826908.

It is not an unprimeable number, because it can be changed into a prime (13826941) 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 15 ways as a sum of consecutive naturals, for example, 1115 + ... + 5375.

It is an arithmetic number, because the mean of its divisors is an integer number (1150740).

Almost surely, 2^13826945 is an apocalyptic number.

It is an amenable number.

13826945 is a deficient number, since it is larger than the sum of its proper divisors (4584895).

13826945 is a wasteful number, since it uses less digits than its factorization.

13826945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336.

The product of its digits is 51840, while the sum is 38.

The square root of 13826945 is about 3718.4600307116. The cubic root of 13826945 is about 240.0170416140.

The spelling of 13826945 in words is "thirteen million, eight hundred twenty-six thousand, nine hundred forty-five".