22732222 has 8 divisors (see below), whose sum is σ = 34122672. Its totient is φ = 11358000.

The previous prime is 22732219. The next prime is 22732231. The reversal of 22732222 is 22223722.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22732193 and 22732202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447 + ... + 6757.

It is an arithmetic number, because the mean of its divisors is an integer number (4265334).

Almost surely, 2^22732222 is an apocalyptic number.

22732222 is a deficient number, since it is larger than the sum of its proper divisors (11390450).

22732222 is a wasteful number, since it uses less digits than its factorization.

22732222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114.

The product of its digits is 1344, while the sum is 22.

The square root of 22732222 is about 4767.8320020739. The cubic root of 22732222 is about 283.2787275005.

Adding to 22732222 its reverse (22223722), we get a palindrome (44955944).

The spelling of 22732222 in words is "twenty-two million, seven hundred thirty-two thousand, two hundred twenty-two".