223431330 has 32 divisors (see below), whose sum is σ = 538150464. Its totient is φ = 59368896.

The previous prime is 223431281. The next prime is 223431343. The reversal of 223431330 is 33134322.

It is a junction number, because it is equal to n+sod(n) for n = 223431297 and 223431306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4669 + ... + 21648.

It is an arithmetic number, because the mean of its divisors is an integer number (16817202).

Almost surely, 2^223431330 is an apocalyptic number.

223431330 is an abundant number, since it is smaller than the sum of its proper divisors (314719134).

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

223431330 is a wasteful number, since it uses less digits than its factorization.

223431330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26610.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 223431330 is about 14947.6195429239. The cubic root of 223431330 is about 606.8034252060.

Adding to 223431330 its reverse (33134322), we get a palindrome (256565652).

The spelling of 223431330 in words is "two hundred twenty-three million, four hundred thirty-one thousand, three hundred thirty".