1000821930 has 32 divisors (see below), whose sum is σ = 2403926208. Its totient is φ = 266668800.

The previous prime is 1000821883. The next prime is 1000821953. The reversal of 1000821930 is 391280001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000821930.

It is an unprimeable number.

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, 25810 + ... + 51650.

It is an arithmetic number, because the mean of its divisors is an integer number (75122694).

Almost surely, 2^1000821930 is an apocalyptic number.

1000821930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000821930 is an abundant number, since it is smaller than the sum of its proper divisors (1403104278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000821930 is a wasteful number, since it uses less digits than its factorization.

1000821930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27142.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1000821930 is about 31635.7697867461. The cubic root of 1000821930 is about 1000.2739016377.

The spelling of 1000821930 in words is "one billion, eight hundred twenty-one thousand, nine hundred thirty".