223131432 has 16 divisors (see below), whose sum is σ = 557828640. Its totient is φ = 74377136.

The previous prime is 223131413. The next prime is 223131457. The reversal of 223131432 is 234131322.

223131432 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223131432³ (a number of 26 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 223131399 and 223131408.

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, 4648548 + ... + 4648595.

It is an arithmetic number, because the mean of its divisors is an integer number (34864290).

Almost surely, 2^223131432 is an apocalyptic number.

It is an amenable number.

223131432 is an abundant number, since it is smaller than the sum of its proper divisors (334697208).

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

223131432 is a wasteful number, since it uses less digits than its factorization.

223131432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297152 (or 9297148 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 223131432 is about 14937.5845436938. The cubic root of 223131432 is about 606.5318121274.

Adding to 223131432 its reverse (234131322), we get a palindrome (457262754).

The spelling of 223131432 in words is "two hundred twenty-three million, one hundred thirty-one thousand, four hundred thirty-two".