229897172 has 12 divisors (see below), whose sum is σ = 402427200. Its totient is φ = 114917976.

The previous prime is 229897153. The next prime is 229897183. The reversal of 229897172 is 271798922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22079 + ... + 30777.

It is an arithmetic number, because the mean of its divisors is an integer number (33535600).

Almost surely, 2^229897172 is an apocalyptic number.

It is an amenable number.

229897172 is a deficient number, since it is larger than the sum of its proper divisors (172530028).

229897172 is a wasteful number, since it uses less digits than its factorization.

229897172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15310 (or 15308 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The square root of 229897172 is about 15162.3603703381. The cubic root of 229897172 is about 612.6012467365.

The spelling of 229897172 in words is "two hundred twenty-nine million, eight hundred ninety-seven thousand, one hundred seventy-two".