229744129956 has 96 divisors (see below), whose sum is σ = 591253278336. Its totient is φ = 68853120000.

The previous prime is 229744129943. The next prime is 229744129957. The reversal of 229744129956 is 659921447922.

It is a self number, because there is not a number n which added to its sum of digits gives 229744129956.

It is not an unprimeable number, because it can be changed into a prime (229744129957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12536256 + ... + 12554568.

It is an arithmetic number, because the mean of its divisors is an integer number (6158888316).

Almost surely, 2^229744129956 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 229744129956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295626639168).

229744129956 is an abundant number, since it is smaller than the sum of its proper divisors (361509148380).

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

229744129956 is a wasteful number, since it uses less digits than its factorization.

229744129956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19373 (or 19371 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 229744129956 in words is "two hundred twenty-nine billion, seven hundred forty-four million, one hundred twenty-nine thousand, nine hundred fifty-six".