222742 has 12 divisors (see below), whose sum is σ = 362340. Its totient is φ = 102648.

The previous prime is 222731. The next prime is 222773. The reversal of 222742 is 247222.

222742 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 2×222742² = 99227997128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

222742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (30195).

2²²²⁷⁴² is an apocalyptic number.

222742 is a deficient number, since it is larger than the sum of its proper divisors (139598).

222742 is a wasteful number, since it uses less digits than its factorization.

222742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 674 counting only the distinct ones).

The product of its digits is 448, while the sum is 19.

The square root of 222742 is about 471.9555063775. The cubic root of 222742 is about 60.6178746010.

Adding to 222742 its reverse (247222), we get a palindrome (469964).

The spelling of 222742 in words is "two hundred twenty-two thousand, seven hundred forty-two", and thus it is an iban number.