1304427 has 8 divisors (see below), whose sum is σ = 1841616. Its totient is φ = 818432.

The previous prime is 1304419. The next prime is 1304477. The reversal of 1304427 is 7244031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304427 - 2³ = 1304419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12738 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (230202).

2^1304427 is an apocalyptic number.

1304427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1304427 is a deficient number, since it is larger than the sum of its proper divisors (537189).

1304427 is a wasteful number, since it uses less digits than its factorization.

1304427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25597.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1304427 is about 1142.1151430570. The cubic root of 1304427 is about 109.2630350283.

Adding to 1304427 its reverse (7244031), we get a palindrome (8548458).

The spelling of 1304427 in words is "one million, three hundred four thousand, four hundred twenty-seven".