229626469 has 2 divisors, whose sum is σ = 229626470. Its totient is φ = 229626468.

The previous prime is 229626431. The next prime is 229626479. The reversal of 229626469 is 964626922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183250369 + 46376100 = 13537^2 + 6810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229626469 is a prime.

It is a super-2 number, since 2×229626469² = 105456630530815922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229626479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114813234 + 114813235.

It is an arithmetic number, because the mean of its divisors is an integer number (114813235).

Almost surely, 2^229626469 is an apocalyptic number.

It is an amenable number.

229626469 is a deficient number, since it is larger than the sum of its proper divisors (1).

229626469 is an equidigital number, since it uses as much as digits as its factorization.

229626469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 46.

The square root of 229626469 is about 15153.4309316405. The cubic root of 229626469 is about 612.3607071281.

The spelling of 229626469 in words is "two hundred twenty-nine million, six hundred twenty-six thousand, four hundred sixty-nine".