229315220 has 12 divisors (see below), whose sum is σ = 481562004. Its totient is φ = 91726080.

The previous prime is 229315217. The next prime is 229315243. The reversal of 229315220 is 22513922.

It can be written as a sum of positive squares in 2 ways, for example, as 163737616 + 65577604 = 12796^2 + 8098^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 229315220.

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 3 ways as a sum of consecutive naturals, for example, 5732861 + ... + 5732900.

It is an arithmetic number, because the mean of its divisors is an integer number (40130167).

Almost surely, 2^229315220 is an apocalyptic number.

229315220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229315220 is an abundant number, since it is smaller than the sum of its proper divisors (252246784).

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

229315220 is a wasteful number, since it uses less digits than its factorization.

229315220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465770 (or 11465768 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 229315220 is about 15143.1575307133. The cubic root of 229315220 is about 612.0839056503.

The spelling of 229315220 in words is "two hundred twenty-nine million, three hundred fifteen thousand, two hundred twenty".