223431432 has 32 divisors (see below), whose sum is σ = 638376000. Its totient is φ = 63837504.

The previous prime is 223431409. The next prime is 223431463. The reversal of 223431432 is 234134322.

223431432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664807 + ... + 665142.

It is an arithmetic number, because the mean of its divisors is an integer number (19949250).

Almost surely, 2^223431432 is an apocalyptic number.

It is an amenable number.

223431432 is an abundant number, since it is smaller than the sum of its proper divisors (414944568).

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

223431432 is a wasteful number, since it uses less digits than its factorization.

223431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329965 (or 1329961 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 223431432 is about 14947.6229548380. The cubic root of 223431432 is about 606.8035175445.

Adding to 223431432 its reverse (234134322), we get a palindrome (457565754).

The spelling of 223431432 in words is "two hundred twenty-three million, four hundred thirty-one thousand, four hundred thirty-two".