229283136 has 168 divisors, whose sum is σ = 712281024. Its totient is φ = 72990720.

The previous prime is 229283129. The next prime is 229283147. The reversal of 229283136 is 631382922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 229283136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357376 + ... + 358016.

It is an arithmetic number, because the mean of its divisors is an integer number (4239768).

Almost surely, 2^229283136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229283136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356140512).

229283136 is an abundant number, since it is smaller than the sum of its proper divisors (482997888).

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

229283136 is an equidigital number, since it uses as much as digits as its factorization.

229283136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 669 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 229283136 is about 15142.0981373124. The cubic root of 229283136 is about 612.0553583142.

The spelling of 229283136 in words is "two hundred twenty-nine million, two hundred eighty-three thousand, one hundred thirty-six".