229391132 has 24 divisors (see below), whose sum is σ = 426933360. Its totient is φ = 107470080.

The previous prime is 229391117. The next prime is 229391147. The reversal of 229391132 is 231193922.

It is an interprime number because it is at equal distance from previous prime (229391117) and next prime (229391147).

It is a congruent number.

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, 8207 + ... + 22937.

It is an arithmetic number, because the mean of its divisors is an integer number (17788890).

Almost surely, 2^229391132 is an apocalyptic number.

It is an amenable number.

229391132 is a deficient number, since it is larger than the sum of its proper divisors (197542228).

229391132 is a wasteful number, since it uses less digits than its factorization.

229391132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14981 (or 14979 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 229391132 is about 15145.6638018939. The cubic root of 229391132 is about 612.1514391634.

The spelling of 229391132 in words is "two hundred twenty-nine million, three hundred ninety-one thousand, one hundred thirty-two".