1949729705 has 32 divisors (see below), whose sum is σ = 2925158400. Its totient is φ = 1212016320.

The previous prime is 1949729687. The next prime is 1949729713. The reversal of 1949729705 is 5079279491.

It is not a de Polignac number, because 1949729705 - 2²⁶ = 1882620841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134396 + ... + 148194.

It is an arithmetic number, because the mean of its divisors is an integer number (91411200).

Almost surely, 2^1949729705 is an apocalyptic number.

It is an amenable number.

1949729705 is a deficient number, since it is larger than the sum of its proper divisors (975428695).

1949729705 is a wasteful number, since it uses less digits than its factorization.

1949729705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14189.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The square root of 1949729705 is about 44155.7437373667. The cubic root of 1949729705 is about 1249.2752502715.

The spelling of 1949729705 in words is "one billion, nine hundred forty-nine million, seven hundred twenty-nine thousand, seven hundred five".