222147936 has 72 divisors (see below), whose sum is σ = 633198384. Its totient is φ = 73877760.

The previous prime is 222147901. The next prime is 222147971. The reversal of 222147936 is 639741222.

It is an interprime number because it is at equal distance from previous prime (222147901) and next prime (222147971).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 222147936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208846 + ... + 209906.

It is an arithmetic number, because the mean of its divisors is an integer number (8794422).

Almost surely, 2^222147936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222147936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316599192).

222147936 is an abundant number, since it is smaller than the sum of its proper divisors (411050448).

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

222147936 is a wasteful number, since it uses less digits than its factorization.

222147936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804 (or 1793 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 222147936 is about 14904.6280060926. The cubic root of 222147936 is about 605.6393632431.

The spelling of 222147936 in words is "two hundred twenty-two million, one hundred forty-seven thousand, nine hundred thirty-six".