1044820 has 48 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 336384.

The previous prime is 1044811. The next prime is 1044833. The reversal of 1044820 is 284401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2161 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2^1044820 is an apocalyptic number.

1044820 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 1044820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330560).

1044820 is an abundant number, since it is smaller than the sum of its proper divisors (1616300).

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

1044820 is a wasteful number, since it uses less digits than its factorization.

1044820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1044820 is about 1022.1643703436. The cubic root of 1044820 is about 101.4722193378.

The spelling of 1044820 in words is "one million, forty-four thousand, eight hundred twenty".