1229729068 has 24 divisors (see below), whose sum is σ = 2281057632. Its totient is φ = 578075904.

The previous prime is 1229728993. The next prime is 1229729087. The reversal of 1229729068 is 8609279221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57646 + ... + 76042.

It is an arithmetic number, because the mean of its divisors is an integer number (95044068).

Almost surely, 2^1229729068 is an apocalyptic number.

It is an amenable number.

1229729068 is a deficient number, since it is larger than the sum of its proper divisors (1051328564).

1229729068 is a wasteful number, since it uses less digits than its factorization.

1229729068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19401 (or 19399 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1229729068 is about 35067.4930384252. The cubic root of 1229729068 is about 1071.3625951535.

The spelling of 1229729068 in words is "one billion, two hundred twenty-nine million, seven hundred twenty-nine thousand, sixty-eight".