222917380 has 96 divisors (see below), whose sum is σ = 564350976. Its totient is φ = 72310656.

The previous prime is 222917377. The next prime is 222917411. The reversal of 222917380 is 83719222.

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, 344217 + ... + 344863.

It is an arithmetic number, because the mean of its divisors is an integer number (5878656).

Almost surely, 2^222917380 is an apocalyptic number.

222917380 is a gapful number since it is divisible by the number (20) 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 222917380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282175488).

222917380 is an abundant number, since it is smaller than the sum of its proper divisors (341433596).

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

222917380 is a wasteful number, since it uses less digits than its factorization.

222917380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 222917380 is about 14930.4179445855. The cubic root of 222917380 is about 606.3377995913.

The spelling of 222917380 in words is "two hundred twenty-two million, nine hundred seventeen thousand, three hundred eighty".