13972426 has 8 divisors (see below), whose sum is σ = 22570884. Its totient is φ = 6448800.

The previous prime is 13972423. The next prime is 13972433. The reversal of 13972426 is 62427931.

It can be written as a sum of positive squares in 2 ways, for example, as 13950225 + 22201 = 3735^2 + 149^2 .

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 = 13972391 and 13972400.

It is not an unprimeable number, because it can be changed into a prime (13972423) 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 3 ways as a sum of consecutive naturals, for example, 268675 + ... + 268726.

Almost surely, 2^13972426 is an apocalyptic number.

13972426 is a deficient number, since it is larger than the sum of its proper divisors (8598458).

13972426 is a wasteful number, since it uses less digits than its factorization.

13972426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537416.

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

The square root of 13972426 is about 3737.9708399077. The cubic root of 13972426 is about 240.8558908428.

The spelling of 13972426 in words is "thirteen million, nine hundred seventy-two thousand, four hundred twenty-six".