229380857 has 4 divisors (see below), whose sum is σ = 231958260. Its totient is φ = 226803456.

The previous prime is 229380829. The next prime is 229380913. The reversal of 229380857 is 758083922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136913401 + 92467456 = 11701^2 + 9616^2 .

It is a cyclic number.

It is not a de Polignac number, because 229380857 - 2¹² = 229376761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229380157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288568 + ... + 1288745.

It is an arithmetic number, because the mean of its divisors is an integer number (57989565).

Almost surely, 2^229380857 is an apocalyptic number.

It is an amenable number.

229380857 is a deficient number, since it is larger than the sum of its proper divisors (2577403).

229380857 is an equidigital number, since it uses as much as digits as its factorization.

229380857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577402.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 229380857 is about 15145.3245920977. The cubic root of 229380857 is about 612.1422990978.

The spelling of 229380857 in words is "two hundred twenty-nine million, three hundred eighty thousand, eight hundred fifty-seven".