229726368 has 144 divisors (see below), whose sum is σ = 700068096. Its totient is φ = 74027520.

The previous prime is 229726333. The next prime is 229726379. The reversal of 229726368 is 863627922.

229726368 is a `hidden beast` number, since 2 + 2 + 9 + 7 + 2 + 636 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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, 240580 + ... + 241532.

It is an arithmetic number, because the mean of its divisors is an integer number (4861584).

Almost surely, 2^229726368 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 229726368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350034048).

229726368 is an abundant number, since it is smaller than the sum of its proper divisors (470341728).

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

229726368 is an equidigital number, since it uses as much as digits as its factorization.

229726368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 989 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 229726368 is about 15156.7268234273. The cubic root of 229726368 is about 612.4494967661.

The spelling of 229726368 in words is "two hundred twenty-nine million, seven hundred twenty-six thousand, three hundred sixty-eight".