222406969 has 8 divisors (see below), whose sum is σ = 225977600. Its totient is φ = 218843856.

The previous prime is 222406909. The next prime is 222406981. The reversal of 222406969 is 969604222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 222406969 - 2⁷ = 222406841 is a prime.

It is a super-2 number, since 2×222406969² = 98929719719533922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222406909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102712 + ... + 104854.

It is an arithmetic number, because the mean of its divisors is an integer number (28247200).

Almost surely, 2^222406969 is an apocalyptic number.

It is an amenable number.

222406969 is a deficient number, since it is larger than the sum of its proper divisors (3570631).

222406969 is a wasteful number, since it uses less digits than its factorization.

222406969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 222406969 is about 14913.3151579386. The cubic root of 222406969 is about 605.8746713704.

The spelling of 222406969 in words is "two hundred twenty-two million, four hundred six thousand, nine hundred sixty-nine".