229868730 has 288 divisors, whose sum is σ = 789295104. Its totient is φ = 45287424.

The previous prime is 229868729. The next prime is 229868789. The reversal of 229868730 is 37868922.

229868730 = 403² + 404² + ... + 910².

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 polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1809927 + ... + 1810053.

It is an arithmetic number, because the mean of its divisors is an integer number (2740608).

Almost surely, 2^229868730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229868730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394647552).

229868730 is an abundant number, since it is smaller than the sum of its proper divisors (559426374).

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

229868730 is a wasteful number, since it uses less digits than its factorization.

229868730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 229868730 is about 15161.4224266722. The cubic root of 229868730 is about 612.5759827991.

The spelling of 229868730 in words is "two hundred twenty-nine million, eight hundred sixty-eight thousand, seven hundred thirty".