13722426 has 16 divisors (see below), whose sum is σ = 30494400. Its totient is φ = 4574124.

The previous prime is 13722409. The next prime is 13722431. The reversal of 13722426 is 62422731.

13722426 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13722426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127006 + ... + 127113.

It is an arithmetic number, because the mean of its divisors is an integer number (1905900).

Almost surely, 2^13722426 is an apocalyptic number.

13722426 is an abundant number, since it is smaller than the sum of its proper divisors (16771974).

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

13722426 is a wasteful number, since it uses less digits than its factorization.

13722426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254130 (or 254124 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 13722426 is about 3704.3793002337. The cubic root of 13722426 is about 239.4107419128.

The spelling of 13722426 in words is "thirteen million, seven hundred twenty-two thousand, four hundred twenty-six".