1729229055 has 32 divisors (see below), whose sum is σ = 2817206784. Its totient is φ = 905579136.

The previous prime is 1729229041. The next prime is 1729229087. The reversal of 1729229055 is 5509229271.

It is a Cunningham number, because it is equal to 41584²-1.

It is not a de Polignac number, because 1729229055 - 2¹⁹ = 1728704767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1729228998 and 1729229016.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 203757 + ... + 212073.

It is an arithmetic number, because the mean of its divisors is an integer number (88037712).

Almost surely, 2^1729229055 is an apocalyptic number.

1729229055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1729229055 is a deficient number, since it is larger than the sum of its proper divisors (1087977729).

1729229055 is a wasteful number, since it uses less digits than its factorization.

1729229055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1729229055 is about 41583.9999879761. Note that the first 4 decimals coincide. The cubic root of 1729229055 is about 1200.2844360470.

The spelling of 1729229055 in words is "one billion, seven hundred twenty-nine million, two hundred twenty-nine thousand, fifty-five".