1004080 has 80 divisors (see below), whose sum is σ = 2928384. Its totient is φ = 311040.

The previous prime is 1004077. The next prime is 1004089. The reversal of 1004080 is 804001.

It is a tau number, because it is divible by the number of its divisors (80).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6079 + ... + 6241.

2^1004080 is an apocalyptic number.

1004080 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 1004080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464192).

1004080 is an abundant number, since it is smaller than the sum of its proper divisors (1924304).

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

1004080 is a wasteful number, since it uses less digits than its factorization.

1004080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1004080 is about 1002.0379234340. The cubic root of 1004080 is about 100.1358154581.

Adding to 1004080 its reverse (804001), we get a palindrome (1808081).

The spelling of 1004080 in words is "one million, four thousand, eighty".