222696438 has 8 divisors (see below), whose sum is σ = 445392888. Its totient is φ = 74232144.

The previous prime is 222696433. The next prime is 222696449. The reversal of 222696438 is 834696222.

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

222696438 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 222696438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222696433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18558031 + ... + 18558042.

It is an arithmetic number, because the mean of its divisors is an integer number (55674111).

Almost surely, 2^222696438 is an apocalyptic number.

222696438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222696438 is a wasteful number, since it uses less digits than its factorization.

222696438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37116078.

The product of its digits is 248832, while the sum is 42.

The square root of 222696438 is about 14923.0170542019. The cubic root of 222696438 is about 606.1374117914.

The spelling of 222696438 in words is "two hundred twenty-two million, six hundred ninety-six thousand, four hundred thirty-eight".