1304404131 has 16 divisors (see below), whose sum is σ = 1840343040. Its totient is φ = 819514080.

The previous prime is 1304404121. The next prime is 1304404159. The reversal of 1304404131 is 1314044031.

It is not a de Polignac number, because 1304404131 - 2⁵ = 1304404099 is a prime.

It is a super-2 number, since 2×1304404131² = 3402940273939730322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304404098 and 1304404107.

It is not an unprimeable number, because it can be changed into a prime (1304404121) by changing a digit.

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, 49020 + ... + 70793.

It is an arithmetic number, because the mean of its divisors is an integer number (115021440).

Almost surely, 2^1304404131 is an apocalyptic number.

1304404131 is a deficient number, since it is larger than the sum of its proper divisors (535938909).

1304404131 is a wasteful number, since it uses less digits than its factorization.

1304404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120026.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1304404131 is about 36116.5354235425. The cubic root of 1304404131 is about 1092.6239649735.

Adding to 1304404131 its reverse (1314044031), we get a palindrome (2618448162).

The spelling of 1304404131 in words is "one billion, three hundred four million, four hundred four thousand, one hundred thirty-one".