1029091930 has 16 divisors (see below), whose sum is σ = 1853671680. Its totient is φ = 411346512.

The previous prime is 1029091913. The next prime is 1029091939. The reversal of 1029091930 is 391909201.

It is a super-2 number, since 2×1029091930² = 2118060400782249800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1029091939) 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 7 ways as a sum of consecutive naturals, for example, 21090 + ... + 50029.

It is an arithmetic number, because the mean of its divisors is an integer number (115854480).

Almost surely, 2^1029091930 is an apocalyptic number.

1029091930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1029091930 is a deficient number, since it is larger than the sum of its proper divisors (824579750).

1029091930 is a wasteful number, since it uses less digits than its factorization.

1029091930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72573.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1029091930 is about 32079.4627448778. The cubic root of 1029091930 is about 1009.6047631732.

The spelling of 1029091930 in words is "one billion, twenty-nine million, ninety-one thousand, nine hundred thirty".