229385618 has 32 divisors (see below), whose sum is σ = 431215488. Its totient is φ = 88905600.

The previous prime is 229385617. The next prime is 229385627. The reversal of 229385618 is 816583922.

It is not an unprimeable number, because it can be changed into a prime (229385617) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26558 + ... + 34118.

It is an arithmetic number, because the mean of its divisors is an integer number (13475484).

Almost surely, 2^229385618 is an apocalyptic number.

229385618 is a deficient number, since it is larger than the sum of its proper divisors (201829870).

229385618 is a wasteful number, since it uses less digits than its factorization.

229385618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778.

The product of its digits is 207360, while the sum is 44.

The square root of 229385618 is about 15145.4817685011. The cubic root of 229385618 is about 612.1465342512.

The spelling of 229385618 in words is "two hundred twenty-nine million, three hundred eighty-five thousand, six hundred eighteen".