1304485 has 32 divisors (see below), whose sum is σ = 1999872. Its totient is φ = 794880.

The previous prime is 1304477. The next prime is 1304503. The reversal of 1304485 is 5844031.

It is not a de Polignac number, because 1304485 - 2³ = 1304477 is a prime.

It is a super-2 number, since 2×1304485² = 3403362230450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21355 + ... + 21415.

It is an arithmetic number, because the mean of its divisors is an integer number (62496).

2^1304485 is an apocalyptic number.

It is an amenable number.

1304485 is a deficient number, since it is larger than the sum of its proper divisors (695387).

1304485 is a wasteful number, since it uses less digits than its factorization.

1304485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1304485 is about 1142.1405342601. The cubic root of 1304485 is about 109.2646544270.

The spelling of 1304485 in words is "one million, three hundred four thousand, four hundred eighty-five".