223631472 has 20 divisors (see below), whose sum is σ = 577714760. Its totient is φ = 74543808.

The previous prime is 223631459. The next prime is 223631479. The reversal of 223631472 is 274136322.

223631472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223631472² = 100022070537773568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223631479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329447 + ... + 2329542.

It is an arithmetic number, because the mean of its divisors is an integer number (28885738).

Almost surely, 2^223631472 is an apocalyptic number.

It is an amenable number.

223631472 is an abundant number, since it is smaller than the sum of its proper divisors (354083288).

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

223631472 is a wasteful number, since it uses less digits than its factorization.

223631472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659000 (or 4658994 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 223631472 is about 14954.3128227278. The cubic root of 223631472 is about 606.9845555881.

Adding to 223631472 its reverse (274136322), we get a palindrome (497767794).

The spelling of 223631472 in words is "two hundred twenty-three million, six hundred thirty-one thousand, four hundred seventy-two".