1043872920 has 320 divisors, whose sum is σ = 3819340800. Its totient is φ = 254741760.

The previous prime is 1043872883. The next prime is 1043872933. The reversal of 1043872920 is 292783401.

1043872920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1908087 + ... + 1908633.

It is an arithmetic number, because the mean of its divisors is an integer number (11935440).

Almost surely, 2^1043872920 is an apocalyptic number.

1043872920 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 1043872920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909670400).

1043872920 is an abundant number, since it is smaller than the sum of its proper divisors (2775467880).

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

1043872920 is a wasteful number, since it uses less digits than its factorization.

1043872920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1043872920 is about 32309.0222693290. The cubic root of 1043872920 is about 1014.4155014391.

It can be divided in two parts, 104 and 3872920, that added together give a square (3873024 = 1968²).

The spelling of 1043872920 in words is "one billion, forty-three million, eight hundred seventy-two thousand, nine hundred twenty".