229547520 has 320 divisors, whose sum is σ = 845570880. Its totient is φ = 59719680.

The previous prime is 229547509. The next prime is 229547537. The reversal of 229547520 is 25745922.

It is a happy number.

229547520 is a `hidden beast` number, since 2 + 2 + 95 + 47 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5598700 + ... + 5598740.

It is an arithmetic number, because the mean of its divisors is an integer number (2642409).

Almost surely, 2^229547520 is an apocalyptic number.

229547520 is a gapful number since it is divisible by the number (20) 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 229547520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422785440).

229547520 is an abundant number, since it is smaller than the sum of its proper divisors (616023360).

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

229547520 is an frugal number, since it uses more digits than its factorization.

229547520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 229547520 is about 15150.8257200722. The cubic root of 229547520 is about 612.2905195065.

The spelling of 229547520 in words is "two hundred twenty-nine million, five hundred forty-seven thousand, five hundred twenty".