1029798670 has 32 divisors (see below), whose sum is σ = 1992729600. Its totient is φ = 381933216.

The previous prime is 1029798617. The next prime is 1029798673. The reversal of 1029798670 is 768979201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029798673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48730 + ... + 66589.

It is an arithmetic number, because the mean of its divisors is an integer number (62272800).

Almost surely, 2^1029798670 is an apocalyptic number.

1029798670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1029798670 is a deficient number, since it is larger than the sum of its proper divisors (962930930).

1029798670 is a wasteful number, since it uses less digits than its factorization.

1029798670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115392.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1029798670 is about 32090.4763130746. The cubic root of 1029798670 is about 1009.8358292781.

The spelling of 1029798670 in words is "one billion, twenty-nine million, seven hundred ninety-eight thousand, six hundred seventy".