222729 has 8 divisors (see below), whose sum is σ = 319872. Its totient is φ = 137040.

The previous prime is 222713. The next prime is 222731. The reversal of 222729 is 927222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222729 - 2⁴ = 222713 is a prime.

222729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 222699 and 222708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2817 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (39984).

2²²²⁷²⁹ is an apocalyptic number.

It is an amenable number.

222729 is a deficient number, since it is larger than the sum of its proper divisors (97143).

222729 is a wasteful number, since it uses less digits than its factorization.

222729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727.

The product of its digits is 1008, while the sum is 24.

The square root of 222729 is about 471.9417336918. The cubic root of 222729 is about 60.6166952878.

The spelling of 222729 in words is "two hundred twenty-two thousand, seven hundred twenty-nine".