1042831820 has 24 divisors (see below), whose sum is σ = 2198284704. Its totient is φ = 415544576.

The previous prime is 1042831789. The next prime is 1042831831. The reversal of 1042831820 is 281382401.

1042831820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93869 + ... + 104388.

It is an arithmetic number, because the mean of its divisors is an integer number (91595196).

Almost surely, 2^1042831820 is an apocalyptic number.

1042831820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042831820 is an abundant number, since it is smaller than the sum of its proper divisors (1155452884).

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

1042831820 is a wasteful number, since it uses less digits than its factorization.

1042831820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198529 (or 198527 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1042831820 is about 32292.9066514614. The cubic root of 1042831820 is about 1014.0781489850.

The spelling of 1042831820 in words is "one billion, forty-two million, eight hundred thirty-one thousand, eight hundred twenty".