222917420 has 48 divisors (see below), whose sum is σ = 513723168. Its totient is φ = 80578560.

The previous prime is 222917419. The next prime is 222917467. The reversal of 222917420 is 24719222.

222917420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222917420² = 99384352278912800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35132 + ... + 40988.

It is an arithmetic number, because the mean of its divisors is an integer number (10702566).

Almost surely, 2^222917420 is an apocalyptic number.

222917420 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 222917420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256861584).

222917420 is an abundant number, since it is smaller than the sum of its proper divisors (290805748).

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

222917420 is a wasteful number, since it uses less digits than its factorization.

222917420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050 (or 6048 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 222917420 is about 14930.4192841326. The cubic root of 222917420 is about 606.3378358581.

The spelling of 222917420 in words is "two hundred twenty-two million, nine hundred seventeen thousand, four hundred twenty".