229521830 has 32 divisors (see below), whose sum is σ = 445022208. Its totient is φ = 84981600.

The previous prime is 229521823. The next prime is 229521857. The reversal of 229521830 is 38125922.

It is a happy number.

It is a super-3 number, since 3×229521830³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8966 + ... + 23225.

It is an arithmetic number, because the mean of its divisors is an integer number (13906944).

Almost surely, 2^229521830 is an apocalyptic number.

229521830 is a deficient number, since it is larger than the sum of its proper divisors (215500378).

229521830 is a wasteful number, since it uses less digits than its factorization.

229521830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32252.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 229521830 is about 15149.9778877726. The cubic root of 229521830 is about 612.2676769882.

The spelling of 229521830 in words is "two hundred twenty-nine million, five hundred twenty-one thousand, eight hundred thirty".