229712730 has 64 divisors (see below), whose sum is σ = 619557120. Its totient is φ = 54084096.

The previous prime is 229712719. The next prime is 229712731. The reversal of 229712730 is 37217922.

229712730 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 229712691 and 229712700.

It is not an unprimeable number, because it can be changed into a prime (229712731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3835 + ... + 21774.

It is an arithmetic number, because the mean of its divisors is an integer number (9680580).

Almost surely, 2^229712730 is an apocalyptic number.

229712730 is an abundant number, since it is smaller than the sum of its proper divisors (389844390).

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

229712730 is a wasteful number, since it uses less digits than its factorization.

229712730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25655.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 229712730 is about 15156.2769175019. The cubic root of 229712730 is about 612.4373769100.

The spelling of 229712730 in words is "two hundred twenty-nine million, seven hundred twelve thousand, seven hundred thirty".