229831819 has 8 divisors (see below), whose sum is σ = 263756768. Its totient is φ = 196179840.

The previous prime is 229831817. The next prime is 229831843. The reversal of 229831819 is 918138922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229831819 - 2¹ = 229831817 is a prime.

It is a super-2 number, since 2×229831819² = 105645330049697522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229831817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66432 + ... + 69805.

It is an arithmetic number, because the mean of its divisors is an integer number (32969596).

Almost surely, 2^229831819 is an apocalyptic number.

229831819 is a deficient number, since it is larger than the sum of its proper divisors (33924949).

229831819 is a wasteful number, since it uses less digits than its factorization.

229831819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136485.

The product of its digits is 62208, while the sum is 43.

The square root of 229831819 is about 15160.2051107497. The cubic root of 229831819 is about 612.5431930667.

The spelling of 229831819 in words is "two hundred twenty-nine million, eight hundred thirty-one thousand, eight hundred nineteen".