229169140 has 12 divisors (see below), whose sum is σ = 481255236. Its totient is φ = 91667648.

The previous prime is 229169077. The next prime is 229169141. The reversal of 229169140 is 41961922.

It can be written as a sum of positive squares in 2 ways, for example, as 70761744 + 158407396 = 8412^2 + 12586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 229169096 and 229169105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229169141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5729209 + ... + 5729248.

It is an arithmetic number, because the mean of its divisors is an integer number (40104603).

Almost surely, 2^229169140 is an apocalyptic number.

229169140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229169140 is an abundant number, since it is smaller than the sum of its proper divisors (252086096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229169140 is a wasteful number, since it uses less digits than its factorization.

229169140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458466 (or 11458464 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 229169140 is about 15138.3334617784. Note that the first 3 decimals coincide. The cubic root of 229169140 is about 611.9539067055.

The spelling of 229169140 in words is "two hundred twenty-nine million, one hundred sixty-nine thousand, one hundred forty".