1304830 has 8 divisors (see below), whose sum is σ = 2348712. Its totient is φ = 521928.

The previous prime is 1304803. The next prime is 1304833. The reversal of 1304830 is 384031.

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

It is a junction number, because it is equal to n+sod(n) for n = 1304798 and 1304807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304833) 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, 65232 + ... + 65251.

It is an arithmetic number, because the mean of its divisors is an integer number (293589).

2^1304830 is an apocalyptic number.

1304830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1304830 is a deficient number, since it is larger than the sum of its proper divisors (1043882).

1304830 is a wasteful number, since it uses less digits than its factorization.

1304830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130490.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1304830 is about 1142.2915564776. The cubic root of 1304830 is about 109.2742860653.

Adding to 1304830 its reverse (384031), we get a palindrome (1688861).

The spelling of 1304830 in words is "one million, three hundred four thousand, eight hundred thirty".