222379872 has 192 divisors, whose sum is σ = 697019904. Its totient is φ = 61194240.

The previous prime is 222379867. The next prime is 222379877. The reversal of 222379872 is 278973222.

It is an interprime number because it is at equal distance from previous prime (222379867) and next prime (222379877).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222379877) 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 31 ways as a sum of consecutive naturals, for example, 1331533 + ... + 1331699.

It is an arithmetic number, because the mean of its divisors is an integer number (3630312).

Almost surely, 2^222379872 is an apocalyptic number.

222379872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222379872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348509952).

222379872 is an abundant number, since it is smaller than the sum of its proper divisors (474640032).

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

222379872 is a wasteful number, since it uses less digits than its factorization.

222379872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 293 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 222379872 is about 14912.4066468159. The cubic root of 222379872 is about 605.8500647483.

The spelling of 222379872 in words is "two hundred twenty-two million, three hundred seventy-nine thousand, eight hundred seventy-two".