229306815 has 16 divisors (see below), whose sum is σ = 407656800. Its totient is φ = 122296896.

The previous prime is 229306811. The next prime is 229306859. The reversal of 229306815 is 518603922.

It is not a de Polignac number, because 229306815 - 2² = 229306811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229306815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229306811) by changing a digit.

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, 849150 + ... + 849419.

It is an arithmetic number, because the mean of its divisors is an integer number (25478550).

Almost surely, 2^229306815 is an apocalyptic number.

229306815 is a deficient number, since it is larger than the sum of its proper divisors (178349985).

229306815 is a wasteful number, since it uses less digits than its factorization.

229306815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698583 (or 1698577 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 229306815 is about 15142.8800100906. The cubic root of 229306815 is about 612.0764274026.

The spelling of 229306815 in words is "two hundred twenty-nine million, three hundred six thousand, eight hundred fifteen".