229911236 has 6 divisors (see below), whose sum is σ = 402344670. Its totient is φ = 114955616.

The previous prime is 229911233. The next prime is 229911299. The reversal of 229911236 is 632119922.

It can be written as a sum of positive squares in only one way, i.e., 191545600 + 38365636 = 13840^2 + 6194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 229911196 and 229911205.

It is not an unprimeable number, because it can be changed into a prime (229911233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28738901 + ... + 28738908.

It is an arithmetic number, because the mean of its divisors is an integer number (67057445).

Almost surely, 2^229911236 is an apocalyptic number.

It is an amenable number.

229911236 is a deficient number, since it is larger than the sum of its proper divisors (172433434).

229911236 is a wasteful number, since it uses less digits than its factorization.

229911236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57477813 (or 57477811 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 229911236 is about 15162.8241432789. The cubic root of 229911236 is about 612.6137384781.

The spelling of 229911236 in words is "two hundred twenty-nine million, nine hundred eleven thousand, two hundred thirty-six".