229509252 has 36 divisors (see below), whose sum is σ = 663027456. Its totient is φ = 65574000.

The previous prime is 229509199. The next prime is 229509253. The reversal of 229509252 is 252905922.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (229509253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455124 + ... + 455627.

Almost surely, 2^229509252 is an apocalyptic number.

It is an amenable number.

229509252 is an abundant number, since it is smaller than the sum of its proper divisors (433518204).

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

229509252 is a wasteful number, since it uses less digits than its factorization.

229509252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910768 (or 910763 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 229509252 is about 15149.5627659679. The cubic root of 229509252 is about 612.2564925132.

The spelling of 229509252 in words is "two hundred twenty-nine million, five hundred nine thousand, two hundred fifty-two".