229398772 has 12 divisors (see below), whose sum is σ = 411239556. Its totient is φ = 111901760.

The previous prime is 229398769. The next prime is 229398781. The reversal of 229398772 is 277893922.

It can be written as a sum of positive squares in 2 ways, for example, as 55264356 + 174134416 = 7434^2 + 13196^2 .

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, 699223 + ... + 699550.

It is an arithmetic number, because the mean of its divisors is an integer number (34269963).

Almost surely, 2^229398772 is an apocalyptic number.

It is an amenable number.

229398772 is a deficient number, since it is larger than the sum of its proper divisors (181840784).

229398772 is a wasteful number, since it uses less digits than its factorization.

229398772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398818 (or 1398816 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 229398772 is about 15145.9160171975. The cubic root of 229398772 is about 612.1582351033.

The spelling of 229398772 in words is "two hundred twenty-nine million, three hundred ninety-eight thousand, seven hundred seventy-two".