223631474 has 12 divisors (see below), whose sum is σ = 368715102. Its totient is φ = 101650560.

The previous prime is 223631459. The next prime is 223631479. The reversal of 223631474 is 474136322.

It can be written as a sum of positive squares in only one way, i.e., 117397225 + 106234249 = 10835^2 + 10307^2 .

It is a super-2 number, since 2×223631474² = 100022072326825352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223631474.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 461807 + ... + 462290.

Almost surely, 2^223631474 is an apocalyptic number.

223631474 is a deficient number, since it is larger than the sum of its proper divisors (145083628).

223631474 is a wasteful number, since it uses less digits than its factorization.

223631474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924121 (or 924110 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 223631474 is about 14954.3128895981. The cubic root of 223631474 is about 606.9845573976.

Adding to 223631474 its reverse (474136322), we get a palindrome (697767796).

The spelling of 223631474 in words is "two hundred twenty-three million, six hundred thirty-one thousand, four hundred seventy-four".