222740 has 48 divisors (see below), whose sum is σ = 561792. Its totient is φ = 72576.

The previous prime is 222731. The next prime is 222773. The reversal of 222740 is 47222.

It is a super-2 number, since 2×222740² = 99226215200, which contains 22 as substring.

It is a congruent number.

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, 5159 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (11704).

2²²²⁷⁴⁰ is an apocalyptic number.

222740 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 222740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280896).

222740 is an abundant number, since it is smaller than the sum of its proper divisors (339052).

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

222740 is a wasteful number, since it uses less digits than its factorization.

222740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 222740 is about 471.9533875289. The cubic root of 222740 is about 60.6176931712.

Adding to 222740 its reverse (47222), we get a palindrome (269962).

The spelling of 222740 in words is "two hundred twenty-two thousand, seven hundred forty", and thus it is an iban number.