229439636 has 6 divisors (see below), whose sum is σ = 401519370. Its totient is φ = 114719816.

The previous prime is 229439549. The next prime is 229439647. The reversal of 229439636 is 636934922.

It can be written as a sum of positive squares in only one way, i.e., 174768400 + 54671236 = 13220^2 + 7394^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28679951 + ... + 28679958.

It is an arithmetic number, because the mean of its divisors is an integer number (66919895).

Almost surely, 2^229439636 is an apocalyptic number.

It is an amenable number.

229439636 is a deficient number, since it is larger than the sum of its proper divisors (172079734).

229439636 is a wasteful number, since it uses less digits than its factorization.

229439636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57359913 (or 57359911 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The square root of 229439636 is about 15147.2649676435. The cubic root of 229439636 is about 612.1945819252.

The spelling of 229439636 in words is "two hundred twenty-nine million, four hundred thirty-nine thousand, six hundred thirty-six".