229990262329 has 27 divisors (see below), whose sum is σ = 249347783503. Its totient is φ = 212109383024.

The previous prime is 229990262323. The next prime is 229990262357. The reversal of 229990262329 is 923262099922.

The square root of 229990262329 is 479573.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 120601314729 + 109388947600 = 347277^2 + 330740^2 .

It is not a de Polignac number, because 229990262329 - 2⁹ = 229990261817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229990262329.

It is not an unprimeable number, because it can be changed into a prime (229990262323) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 319874832 + ... + 319875550.

Almost surely, 2^229990262329 is an apocalyptic number.

229990262329 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

229990262329 is the 479573-rd square number.

229990262329 is the 239787-th centered octagonal number.

It is an amenable number.

229990262329 is a deficient number, since it is larger than the sum of its proper divisors (19357521174).

229990262329 is an frugal number, since it uses more digits than its factorization.

229990262329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 55.

The spelling of 229990262329 in words is "two hundred twenty-nine billion, nine hundred ninety million, two hundred sixty-two thousand, three hundred twenty-nine".