229890724168 has 96 divisors (see below), whose sum is σ = 510541293600. Its totient is φ = 96736405248.

The previous prime is 229890724159. The next prime is 229890724169. The reversal of 229890724168 is 861427098922.

It is a happy number.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (229890724169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20416396 + ... + 20427652.

It is an arithmetic number, because the mean of its divisors is an integer number (5318138475).

Almost surely, 2^229890724168 is an apocalyptic number.

229890724168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229890724168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255270646800).

229890724168 is an abundant number, since it is smaller than the sum of its proper divisors (280650569432).

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

229890724168 is a wasteful number, since it uses less digits than its factorization.

229890724168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12219 (or 12208 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 229890724168 in words is "two hundred twenty-nine billion, eight hundred ninety million, seven hundred twenty-four thousand, one hundred sixty-eight".