223213836 has 12 divisors (see below), whose sum is σ = 520832312. Its totient is φ = 74404608.

The previous prime is 223213829. The next prime is 223213853. The reversal of 223213836 is 638312322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×223213836³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9300565 + ... + 9300588.

Almost surely, 2^223213836 is an apocalyptic number.

It is an amenable number.

223213836 is an abundant number, since it is smaller than the sum of its proper divisors (297618476).

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

223213836 is a wasteful number, since it uses less digits than its factorization.

223213836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18601160 (or 18601158 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 223213836 is about 14940.3425663537. The cubic root of 223213836 is about 606.6064684194.

The spelling of 223213836 in words is "two hundred twenty-three million, two hundred thirteen thousand, eight hundred thirty-six".