229732812 has 18 divisors (see below), whose sum is σ = 580713588. Its totient is φ = 76577592.

The previous prime is 229732807. The next prime is 229732817. The reversal of 229732812 is 218237922.

It is an interprime number because it is at equal distance from previous prime (229732807) and next prime (229732817).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6381467 = 229732812 / (2 + 2 + 9 + 7 + 3 + 2 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (229732817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3190698 + ... + 3190769.

It is an arithmetic number, because the mean of its divisors is an integer number (32261866).

Almost surely, 2^229732812 is an apocalyptic number.

It is an amenable number.

229732812 is an abundant number, since it is smaller than the sum of its proper divisors (350980776).

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

229732812 is a wasteful number, since it uses less digits than its factorization.

229732812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381477 (or 6381472 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 229732812 is about 15156.9394008157. The cubic root of 229732812 is about 612.4552232712.

The spelling of 229732812 in words is "two hundred twenty-nine million, seven hundred thirty-two thousand, eight hundred twelve".