1044540 has 72 divisors (see below), whose sum is σ = 3625440. Its totient is φ = 238464.

The previous prime is 1044529. The next prime is 1044559. The reversal of 1044540 is 454401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 846 + ... + 1674.

2^1044540 is an apocalyptic number.

1044540 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 1044540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812720).

1044540 is an abundant number, since it is smaller than the sum of its proper divisors (2580900).

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

1044540 is a wasteful number, since it uses less digits than its factorization.

1044540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1044540 is about 1022.0273968931. The cubic root of 1044540 is about 101.4631540571.

Adding to 1044540 its reverse (454401), we get a palindrome (1498941).

The spelling of 1044540 in words is "one million, forty-four thousand, five hundred forty".