224664728 has 16 divisors (see below), whose sum is σ = 422771280. Its totient is φ = 111925728.

The previous prime is 224664709. The next prime is 224664751. The reversal of 224664728 is 827466422.

It is a congruent number.

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, 48476 + ... + 52907.

It is an arithmetic number, because the mean of its divisors is an integer number (26423205).

Almost surely, 2^224664728 is an apocalyptic number.

It is an amenable number.

224664728 is a deficient number, since it is larger than the sum of its proper divisors (198106552).

224664728 is a wasteful number, since it uses less digits than its factorization.

224664728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101666 (or 101662 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 224664728 is about 14988.8201003281. The cubic root of 224664728 is about 607.9179468563.

The spelling of 224664728 in words is "two hundred twenty-four million, six hundred sixty-four thousand, seven hundred twenty-eight".