22072726 has 16 divisors (see below), whose sum is σ = 36262800. Its totient is φ = 10014048.

The previous prime is 22072723. The next prime is 22072733. The reversal of 22072726 is 62727022.

It is a junction number, because it is equal to n+sod(n) for n = 22072694 and 22072703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22072723) 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, 5661 + ... + 8728.

It is an arithmetic number, because the mean of its divisors is an integer number (2266425).

Almost surely, 2^22072726 is an apocalyptic number.

22072726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22072726 is a deficient number, since it is larger than the sum of its proper divisors (14190074).

22072726 is a wasteful number, since it uses less digits than its factorization.

22072726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14463.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 22072726 is about 4698.1619810305. The cubic root of 22072726 is about 280.5123527255.

Adding to 22072726 its reverse (62727022), we get a palindrome (84799748).

The spelling of 22072726 in words is "twenty-two million, seventy-two thousand, seven hundred twenty-six".