229628872 has 32 divisors (see below), whose sum is σ = 490121280. Its totient is φ = 99837760.

The previous prime is 229628837. The next prime is 229628881. The reversal of 229628872 is 278826922.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54703 + ... + 58750.

It is an arithmetic number, because the mean of its divisors is an integer number (15316290).

Almost surely, 2^229628872 is an apocalyptic number.

229628872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

229628872 is an abundant number, since it is smaller than the sum of its proper divisors (260492408).

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

229628872 is a wasteful number, since it uses less digits than its factorization.

229628872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113493 (or 113489 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 229628872 is about 15153.5102204077. The cubic root of 229628872 is about 612.3628432025.

The spelling of 229628872 in words is "two hundred twenty-nine million, six hundred twenty-eight thousand, eight hundred seventy-two".