1044840 has 32 divisors (see below), whose sum is σ = 3134880. Its totient is φ = 278592.

The previous prime is 1044839. The next prime is 1044847. The reversal of 1044840 is 484401.

It is not an unprimeable number, because it can be changed into a prime (1044847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4234 + ... + 4473.

It is an arithmetic number, because the mean of its divisors is an integer number (97965).

2^1044840 is an apocalyptic number.

1044840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044840 is an abundant number, since it is smaller than the sum of its proper divisors (2090040).

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

1044840 is a wasteful number, since it uses less digits than its factorization.

1044840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721 (or 8717 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1044840 is about 1022.1741534592. The cubic root of 1044840 is about 101.4728667959.

It can be divided in two parts, 10 and 44840, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 1044840 in words is "one million, forty-four thousand, eight hundred forty".