223270 has 16 divisors (see below), whose sum is σ = 408240. Its totient is φ = 87904.

The previous prime is 223259. The next prime is 223273. The reversal of 223270 is 72322.

223270 = 5² + 6² + ... + 87².

It is a happy number.

It is a super-3 number, since 3×223270³ = 33389688839349000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223273) by changing a digit.

223270 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 7 ways as a sum of consecutive naturals, for example, 696 + ... + 964.

It is an arithmetic number, because the mean of its divisors is an integer number (25515).

2²²³²⁷⁰ is an apocalyptic number.

223270 is a deficient number, since it is larger than the sum of its proper divisors (184970).

223270 is a wasteful number, since it uses less digits than its factorization.

223270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 223270 is about 472.5145500405. The cubic root of 223270 is about 60.6657341294.

Adding to 223270 its reverse (72322), we get a palindrome (295592).

The spelling of 223270 in words is "two hundred twenty-three thousand, two hundred seventy", and thus it is an iban number.