222336906 has 64 divisors (see below), whose sum is σ = 510105600. Its totient is φ = 63947840.

The previous prime is 222336869. The next prime is 222336911. The reversal of 222336906 is 609633222.

222336906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225691 + ... + 226673.

It is an arithmetic number, because the mean of its divisors is an integer number (7970400).

Almost surely, 2^222336906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222336906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255052800).

222336906 is an abundant number, since it is smaller than the sum of its proper divisors (287768694).

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

222336906 is a wasteful number, since it uses less digits than its factorization.

222336906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 222336906 is about 14910.9659646852. The cubic root of 222336906 is about 605.8110434851.

The spelling of 222336906 in words is "two hundred twenty-two million, three hundred thirty-six thousand, nine hundred six".