1304412320 has 48 divisors (see below), whose sum is σ = 3243875040. Its totient is φ = 494302464.

The previous prime is 1304412311. The next prime is 1304412323. The reversal of 1304412320 is 232144031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1304412292 and 1304412301.

It is not an unprimeable number, because it can be changed into a prime (1304412323) 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, 211502 + ... + 217581.

It is an arithmetic number, because the mean of its divisors is an integer number (67580730).

Almost surely, 2^1304412320 is an apocalyptic number.

1304412320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304412320 is an abundant number, since it is smaller than the sum of its proper divisors (1939462720).

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

1304412320 is a wasteful number, since it uses less digits than its factorization.

1304412320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429117 (or 429109 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1304412320 is about 36116.6487924890. The cubic root of 1304412320 is about 1092.6262514528.

Adding to 1304412320 its reverse (232144031), we get a palindrome (1536556351).

The spelling of 1304412320 in words is "one billion, three hundred four million, four hundred twelve thousand, three hundred twenty".