229042685 has 4 divisors (see below), whose sum is σ = 274851228. Its totient is φ = 183234144.

The previous prime is 229042633. The next prime is 229042729. The reversal of 229042685 is 586240922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586240922 = 2 ⋅293120461.

It can be written as a sum of positive squares in 2 ways, for example, as 45873529 + 183169156 = 6773^2 + 13534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229042685 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 22904264 + ... + 22904273.

It is an arithmetic number, because the mean of its divisors is an integer number (68712807).

Almost surely, 2^229042685 is an apocalyptic number.

It is an amenable number.

229042685 is a deficient number, since it is larger than the sum of its proper divisors (45808543).

229042685 is an equidigital number, since it uses as much as digits as its factorization.

229042685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45808542.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 229042685 is about 15134.1562368042. The cubic root of 229042685 is about 611.8413277472.

The spelling of 229042685 in words is "two hundred twenty-nine million, forty-two thousand, six hundred eighty-five".