229565436 has 48 divisors (see below), whose sum is σ = 550787328. Its totient is φ = 74390400.

The previous prime is 229565417. The next prime is 229565459. The reversal of 229565436 is 634565922.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60351 + ... + 64041.

It is an arithmetic number, because the mean of its divisors is an integer number (11474736).

Almost surely, 2^229565436 is an apocalyptic number.

It is an amenable number.

229565436 is an abundant number, since it is smaller than the sum of its proper divisors (321221892).

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

229565436 is a wasteful number, since it uses less digits than its factorization.

229565436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842 (or 3840 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 229565436 is about 15151.4169634394. The cubic root of 229565436 is about 612.3064486869.

The spelling of 229565436 in words is "two hundred twenty-nine million, five hundred sixty-five thousand, four hundred thirty-six".