229140918 has 12 divisors (see below), whose sum is σ = 496472028. Its totient is φ = 76380300.

The previous prime is 229140917. The next prime is 229140929. The reversal of 229140918 is 819041922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229140911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6365008 + ... + 6365043.

It is an arithmetic number, because the mean of its divisors is an integer number (41372669).

Almost surely, 2^229140918 is an apocalyptic number.

229140918 is an abundant number, since it is smaller than the sum of its proper divisors (267331110).

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

229140918 is a wasteful number, since it uses less digits than its factorization.

229140918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730059 (or 12730056 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 229140918 is about 15137.4012961274. The cubic root of 229140918 is about 611.9287851263.

The spelling of 229140918 in words is "two hundred twenty-nine million, one hundred forty thousand, nine hundred eighteen".