229985910 has 216 divisors, whose sum is σ = 766348128. Its totient is φ = 47678400.

The previous prime is 229985897. The next prime is 229985929. The reversal of 229985910 is 19589922.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 533395 + ... + 533825.

It is an arithmetic number, because the mean of its divisors is an integer number (3547908).

Almost surely, 2^229985910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229985910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383174064).

229985910 is an abundant number, since it is smaller than the sum of its proper divisors (536362218).

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

229985910 is a wasteful number, since it uses less digits than its factorization.

229985910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 229985910 is about 15165.2863474449. The cubic root of 229985910 is about 612.6800559075.

It can be divided in two parts, 2299 and 85910, that added together give a square (88209 = 297²).

The spelling of 229985910 in words is "two hundred twenty-nine million, nine hundred eighty-five thousand, nine hundred ten".