229799728 has 20 divisors (see below), whose sum is σ = 445739328. Its totient is φ = 114770240.

The previous prime is 229799707. The next prime is 229799753. The reversal of 229799728 is 827997922.

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, 7425 + ... + 22687.

Almost surely, 2^229799728 is an apocalyptic number.

It is an amenable number.

229799728 is a deficient number, since it is larger than the sum of its proper divisors (215939600).

229799728 is a wasteful number, since it uses less digits than its factorization.

229799728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16212 (or 16206 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 55.

The square root of 229799728 is about 15159.1466778312. The cubic root of 229799728 is about 612.5146823080.

The spelling of 229799728 in words is "two hundred twenty-nine million, seven hundred ninety-nine thousand, seven hundred twenty-eight".