1304080 has 20 divisors (see below), whose sum is σ = 3032172. Its totient is φ = 521600.

The previous prime is 1304071. The next prime is 1304081. The reversal of 1304080 is 804031.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 501264 = 896^2 + 708^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1304081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8071 + ... + 8230.

2^1304080 is an apocalyptic number.

1304080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304080 is an abundant number, since it is smaller than the sum of its proper divisors (1728092).

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

1304080 is a wasteful number, since it uses less digits than its factorization.

1304080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16314 (or 16308 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1304080 is about 1141.9632218246. The cubic root of 1304080 is about 109.2533455540.

The spelling of 1304080 in words is "one million, three hundred four thousand, eighty".