229845636 has 36 divisors (see below), whose sum is σ = 583091964. Its totient is φ = 76339200.

The previous prime is 229845617. The next prime is 229845653. The reversal of 229845636 is 636548922.

229845636 is a `hidden beast` number, since 2 + 2 + 9 + 8 + 4 + 5 + 636 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123343236 + 106502400 = 11106^2 + 10320^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 229845591 and 229845600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1245 + ... + 21476.

It is an arithmetic number, because the mean of its divisors is an integer number (16196999).

Almost surely, 2^229845636 is an apocalyptic number.

It is an amenable number.

229845636 is an abundant number, since it is smaller than the sum of its proper divisors (353246328).

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

229845636 is a wasteful number, since it uses less digits than its factorization.

229845636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012 (or 23007 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 229845636 is about 15160.6608035402. The cubic root of 229845636 is about 612.5554677519. Note that the first 3 decimals are identical.

The spelling of 229845636 in words is "two hundred twenty-nine million, eight hundred forty-five thousand, six hundred thirty-six".