22144726 has 16 divisors (see below), whose sum is σ = 34449408. Its totient is φ = 10665000.

The previous prime is 22144721. The next prime is 22144729. The reversal of 22144726 is 62744122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22144694 and 22144703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14851 + ... + 16273.

It is an arithmetic number, because the mean of its divisors is an integer number (2153088).

Almost surely, 2^22144726 is an apocalyptic number.

22144726 is a deficient number, since it is larger than the sum of its proper divisors (12304682).

22144726 is a wasteful number, since it uses less digits than its factorization.

22144726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707.

The product of its digits is 5376, while the sum is 28.

The square root of 22144726 is about 4705.8183135349. The cubic root of 22144726 is about 280.8170269002.

Adding to 22144726 its reverse (62744122), we get a palindrome (84888848).

The spelling of 22144726 in words is "twenty-two million, one hundred forty-four thousand, seven hundred twenty-six".