222232426 has 16 divisors (see below), whose sum is σ = 359788968. Its totient is φ = 102340800.

The previous prime is 222232399. The next prime is 222232429. The reversal of 222232426 is 624232222.

It can be written as a sum of positive squares in 4 ways, for example, as 131125401 + 91107025 = 11451^2 + 9545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222232426.

It is not an unprimeable number, because it can be changed into a prime (222232429) 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, 2716 + ... + 21256.

Almost surely, 2^222232426 is an apocalyptic number.

222232426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222232426 is a deficient number, since it is larger than the sum of its proper divisors (137556542).

222232426 is a wasteful number, since it uses less digits than its factorization.

222232426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19017.

The product of its digits is 4608, while the sum is 25.

The square root of 222232426 is about 14907.4620911810. The cubic root of 222232426 is about 605.7161348829.

Adding to 222232426 its reverse (624232222), we get a palindrome (846464648).

It can be divided in two parts, 22223 and 2426, that added together give a square (24649 = 157²).

The spelling of 222232426 in words is "two hundred twenty-two million, two hundred thirty-two thousand, four hundred twenty-six".