229728900 has 36 divisors (see below), whose sum is σ = 664683152. Its totient is φ = 61260960.

The previous prime is 229728881. The next prime is 229728931. The reversal of 229728900 is 9827922.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 382582 + ... + 383181.

Almost surely, 2^229728900 is an apocalyptic number.

229728900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229728900 is an abundant number, since it is smaller than the sum of its proper divisors (434954252).

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

229728900 is a wasteful number, since it uses less digits than its factorization.

229728900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765780 (or 765773 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 229728900 is about 15156.8103504662. The cubic root of 229728900 is about 612.4517468581.

The spelling of 229728900 in words is "two hundred twenty-nine million, seven hundred twenty-eight thousand, nine hundred".