229643423292 has 48 divisors (see below), whose sum is σ = 540668046240. Its totient is φ = 75857553408.

The previous prime is 229643423291. The next prime is 229643423299. The reversal of 229643423292 is 292324346922.

It is a super-2 number, since 2×229643423292² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229643423291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11283958 + ... + 11304290.

It is an arithmetic number, because the mean of its divisors is an integer number (11263917630).

Almost surely, 2^229643423292 is an apocalyptic number.

It is an amenable number.

229643423292 is an abundant number, since it is smaller than the sum of its proper divisors (311024622948).

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

229643423292 is a wasteful number, since it uses less digits than its factorization.

229643423292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28782 (or 28780 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 48.

The spelling of 229643423292 in words is "two hundred twenty-nine billion, six hundred forty-three million, four hundred twenty-three thousand, two hundred ninety-two".