22981226 has 8 divisors (see below), whose sum is σ = 34499460. Its totient is φ = 11481408.

The previous prime is 22981213. The next prime is 22981243. The reversal of 22981226 is 62218922.

It can be written as a sum of positive squares in 2 ways, for example, as 22420225 + 561001 = 4735^2 + 749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22981192 and 22981201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 6836.

Almost surely, 2^22981226 is an apocalyptic number.

22981226 is a deficient number, since it is larger than the sum of its proper divisors (11518234).

22981226 is a wasteful number, since it uses less digits than its factorization.

22981226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208.

The product of its digits is 6912, while the sum is 32.

The square root of 22981226 is about 4793.8737989230. The cubic root of 22981226 is about 284.3092990110.

Subtracting 22981226 from its reverse (62218922), we obtain a square (39237696 = 6264²).

The spelling of 22981226 in words is "twenty-two million, nine hundred eighty-one thousand, two hundred twenty-six".