223430312 has 32 divisors (see below), whose sum is σ = 486635520. Its totient is φ = 94184640.

The previous prime is 223430293. The next prime is 223430323. The reversal of 223430312 is 213034322.

It is a super-2 number, since 2×223430312² = 99842208640834688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29288 + ... + 36119.

It is an arithmetic number, because the mean of its divisors is an integer number (15207360).

Almost surely, 2^223430312 is an apocalyptic number.

It is an amenable number.

223430312 is an abundant number, since it is smaller than the sum of its proper divisors (263205208).

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

223430312 is a wasteful number, since it uses less digits than its factorization.

223430312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65481 (or 65477 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 223430312 is about 14947.5854906403. The cubic root of 223430312 is about 606.8025036300.

Adding to 223430312 its reverse (213034322), we get a palindrome (436464634).

The spelling of 223430312 in words is "two hundred twenty-three million, four hundred thirty thousand, three hundred twelve".