229400439769 has 2 divisors, whose sum is σ = 229400439770. Its totient is φ = 229400439768.

The previous prime is 229400439761. The next prime is 229400439803. The reversal of 229400439769 is 967934004922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201138795225 + 28261644544 = 448485^2 + 168112^2 .

It is a cyclic number.

It is not a de Polignac number, because 229400439769 - 2³ = 229400439761 is a prime.

It is a super-2 number, since 2×229400439769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229400439761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114700219884 + 114700219885.

It is an arithmetic number, because the mean of its divisors is an integer number (114700219885).

Almost surely, 2^229400439769 is an apocalyptic number.

It is an amenable number.

229400439769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229400439769 is an equidigital number, since it uses as much as digits as its factorization.

229400439769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 229400439769 in words is "two hundred twenty-nine billion, four hundred million, four hundred thirty-nine thousand, seven hundred sixty-nine".