229442881 has 2 divisors, whose sum is σ = 229442882. Its totient is φ = 229442880.

The previous prime is 229442849. The next prime is 229442887. The reversal of 229442881 is 188244922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167961600 + 61481281 = 12960^2 + 7841^2 .

It is a cyclic number.

It is not a de Polignac number, because 229442881 - 2⁵ = 229442849 is a prime.

It is a super-2 number, since 2×229442881² = 105288071283160322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229442887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114721440 + 114721441.

It is an arithmetic number, because the mean of its divisors is an integer number (114721441).

Almost surely, 2^229442881 is an apocalyptic number.

It is an amenable number.

229442881 is a deficient number, since it is larger than the sum of its proper divisors (1).

229442881 is an equidigital number, since it uses as much as digits as its factorization.

229442881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 40.

The square root of 229442881 is about 15147.3720823118. The cubic root of 229442881 is about 612.1974680322.

The spelling of 229442881 in words is "two hundred twenty-nine million, four hundred forty-two thousand, eight hundred eighty-one".