29223289904449 has 3 divisors (see below), whose sum is σ = 29223295310307. Its totient is φ = 29223284498592.

The previous prime is 29223289904411. The next prime is 29223289904453. The reversal of 29223289904449 is 94440998232292.

The square root of 29223289904449 is 5405857.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6771158601025 + 22452131303424 = 2602145^2 + 4738368^2 .

It is not a de Polignac number, because 29223289904449 - 2⁹ = 29223289903937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29223289944449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2702929 + ... + 8108785.

It is an arithmetic number, because the mean of its divisors is an integer number (9741098436769).

Almost surely, 2^{29223289904449} is an apocalyptic number.

29223289904449 is the 5405857-th square number.

29223289904449 is the 2702929-th centered octagonal number.

It is an amenable number.

29223289904449 is a deficient number, since it is larger than the sum of its proper divisors (5405858).

29223289904449 is an frugal number, since it uses more digits than its factorization.

29223289904449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10811714 (or 5405857 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 67.

The spelling of 29223289904449 in words is "twenty-nine trillion, two hundred twenty-three billion, two hundred eighty-nine million, nine hundred four thousand, four hundred forty-nine".