1304906 has 4 divisors (see below), whose sum is σ = 1957362. Its totient is φ = 652452.

The previous prime is 1304893. The next prime is 1304923. The reversal of 1304906 is 6094031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6094031 = 29 ⋅210139.

It can be written as a sum of positive squares in only one way, i.e., 1301881 + 3025 = 1141^2 + 55^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326225 + ... + 326228.

2^1304906 is an apocalyptic number.

1304906 is a deficient number, since it is larger than the sum of its proper divisors (652456).

1304906 is an equidigital number, since it uses as much as digits as its factorization.

1304906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652455.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1304906 is about 1142.3248224564. The cubic root of 1304906 is about 109.2764075893.

Adding to 1304906 its reverse (6094031), we get a palindrome (7398937).

The spelling of 1304906 in words is "one million, three hundred four thousand, nine hundred six".