229705998 has 16 divisors (see below), whose sum is σ = 467199360. Its totient is φ = 75270776.

The previous prime is 229705997. The next prime is 229706021. The reversal of 229705998 is 899507922.

It is a self number, because there is not a number n which added to its sum of digits gives 229705998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229705997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324090 + ... + 324797.

It is an arithmetic number, because the mean of its divisors is an integer number (29199960).

Almost surely, 2^229705998 is an apocalyptic number.

229705998 is an abundant number, since it is smaller than the sum of its proper divisors (237493362).

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

229705998 is a wasteful number, since it uses less digits than its factorization.

229705998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648951.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 229705998 is about 15156.0548296712. The cubic root of 229705998 is about 612.4313941206.

The spelling of 229705998 in words is "two hundred twenty-nine million, seven hundred five thousand, nine hundred ninety-eight".