1304445 has 32 divisors (see below), whose sum is σ = 2304000. Its totient is φ = 627264.

The previous prime is 1304419. The next prime is 1304477. The reversal of 1304445 is 5444031.

It is not a de Polignac number, because 1304445 - 2⁹ = 1303933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6456 + ... + 6654.

It is an arithmetic number, because the mean of its divisors is an integer number (72000).

2^1304445 is an apocalyptic number.

1304445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304445 is a deficient number, since it is larger than the sum of its proper divisors (999555).

1304445 is a wasteful number, since it uses less digits than its factorization.

1304445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1304445 is about 1142.1230231459. The cubic root of 1304445 is about 109.2635376054.

Adding to 1304445 its reverse (5444031), we get a palindrome (6748476).

The spelling of 1304445 in words is "one million, three hundred four thousand, four hundred forty-five".