1304120860 has 48 divisors (see below), whose sum is σ = 3294627840. Its totient is φ = 423593280.

The previous prime is 1304120849. The next prime is 1304120887. The reversal of 1304120860 is 680214031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242476 + ... + 247795.

It is an arithmetic number, because the mean of its divisors is an integer number (68638080).

Almost surely, 2^1304120860 is an apocalyptic number.

1304120860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304120860 is an abundant number, since it is smaller than the sum of its proper divisors (1990506980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304120860 is a wasteful number, since it uses less digits than its factorization.

1304120860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490306 (or 490304 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1304120860 is about 36112.6135858373. The cubic root of 1304120860 is about 1092.5448659981.

Adding to 1304120860 its reverse (680214031), we get a palindrome (1984334891).

The spelling of 1304120860 in words is "one billion, three hundred four million, one hundred twenty thousand, eight hundred sixty".