229188388 has 24 divisors (see below), whose sum is σ = 471199680. Its totient is φ = 96162720.

The previous prime is 229188383. The next prime is 229188389. The reversal of 229188388 is 883881922.

It is not an unprimeable number, because it can be changed into a prime (229188383) 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, 199768 + ... + 200911.

It is an arithmetic number, because the mean of its divisors is an integer number (19633320).

Almost surely, 2^229188388 is an apocalyptic number.

It is an amenable number.

229188388 is an abundant number, since it is smaller than the sum of its proper divisors (242011292).

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

229188388 is a wasteful number, since it uses less digits than its factorization.

229188388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400707 (or 400705 counting only the distinct ones).

The product of its digits is 442368, while the sum is 49.

The square root of 229188388 is about 15138.9691855159. The cubic root of 229188388 is about 611.9710389701.

The spelling of 229188388 in words is "two hundred twenty-nine million, one hundred eighty-eight thousand, three hundred eighty-eight".