1043920 has 20 divisors (see below), whose sum is σ = 2427300. Its totient is φ = 417536.

The previous prime is 1043899. The next prime is 1043921. The reversal of 1043920 is 293401.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 559504 = 696^2 + 748^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6445 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (121365).

2^1043920 is an apocalyptic number.

1043920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043920 is an abundant number, since it is smaller than the sum of its proper divisors (1383380).

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

1043920 is a wasteful number, since it uses less digits than its factorization.

1043920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13062 (or 13056 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1043920 is about 1021.7240331910. The cubic root of 1043920 is about 101.4430751687.

The spelling of 1043920 in words is "one million, forty-three thousand, nine hundred twenty".