224642066 has 12 divisors (see below), whose sum is σ = 370381326. Its totient is φ = 102109920.

The previous prime is 224641987. The next prime is 224642101. The reversal of 224642066 is 660246422.

224642066 = 2238² + 2239² + ... + 2281².

It can be written as a sum of positive squares in only one way, i.e., 224130841 + 511225 = 14971^2 + 715^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463895 + ... + 464378.

Almost surely, 2^224642066 is an apocalyptic number.

224642066 is a deficient number, since it is larger than the sum of its proper divisors (145739260).

224642066 is a wasteful number, since it uses less digits than its factorization.

224642066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928297 (or 928286 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 224642066 is about 14988.0641178239. The cubic root of 224642066 is about 607.8975058791.

Adding to 224642066 its reverse (660246422), we get a palindrome (884888488).

The spelling of 224642066 in words is "two hundred twenty-four million, six hundred forty-two thousand, sixty-six".