1029861794 has 16 divisors (see below), whose sum is σ = 1664160120. Its totient is φ = 475167360.

The previous prime is 1029861733. The next prime is 1029861797. The reversal of 1029861794 is 4971689201.

1029861794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 751472569 + 278389225 = 27413^2 + 16685^2 .

It is not an unprimeable number, because it can be changed into a prime (1029861797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133022 + ... + 140550.

Almost surely, 2^1029861794 is an apocalyptic number.

1029861794 is a deficient number, since it is larger than the sum of its proper divisors (634298326).

1029861794 is a wasteful number, since it uses less digits than its factorization.

1029861794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12805.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1029861794 is about 32091.4598296805. The cubic root of 1029861794 is about 1009.8564622997.

The spelling of 1029861794 in words is "one billion, twenty-nine million, eight hundred sixty-one thousand, seven hundred ninety-four".