1043779920 has 160 divisors (see below), whose sum is σ = 3359784960. Its totient is φ = 267778560.

The previous prime is 1043779907. The next prime is 1043779931. The reversal of 1043779920 is 299773401.

1043779920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1777867 + ... + 1778453.

It is an arithmetic number, because the mean of its divisors is an integer number (20998656).

Almost surely, 2^1043779920 is an apocalyptic number.

1043779920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043779920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679892480).

1043779920 is an abundant number, since it is smaller than the sum of its proper divisors (2316005040).

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

1043779920 is a wasteful number, since it uses less digits than its factorization.

1043779920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1043779920 is about 32307.5830108041. The cubic root of 1043779920 is about 1014.3853753444.

The spelling of 1043779920 in words is "one billion, forty-three million, seven hundred seventy-nine thousand, nine hundred twenty".