224666818 has 4 divisors (see below), whose sum is σ = 337000230. Its totient is φ = 112333408.

The previous prime is 224666803. The next prime is 224666831. The reversal of 224666818 is 818666422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196756729 + 27910089 = 14027^2 + 5283^2 .

It is a super-2 number, since 2×224666818² = 100950358220490248, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 56166703 + ... + 56166706.

Almost surely, 2^224666818 is an apocalyptic number.

224666818 is a deficient number, since it is larger than the sum of its proper divisors (112333412).

224666818 is a wasteful number, since it uses less digits than its factorization.

224666818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112333411.

The product of its digits is 221184, while the sum is 43.

The square root of 224666818 is about 14988.8898187958. The cubic root of 224666818 is about 607.9198319535.

The spelling of 224666818 in words is "two hundred twenty-four million, six hundred sixty-six thousand, eight hundred eighteen".