1304104040 has 16 divisors (see below), whose sum is σ = 2934234180. Its totient is φ = 521641600.

The previous prime is 1304104033. The next prime is 1304104049. The reversal of 1304104040 is 404014031.

It can be written as a sum of positive squares in 2 ways, for example, as 1298449156 + 5654884 = 36034^2 + 2378^2 .

It is not an unprimeable number, because it can be changed into a prime (1304104049) 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, 16301261 + ... + 16301340.

Almost surely, 2^1304104040 is an apocalyptic number.

1304104040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304104040 is an abundant number, since it is smaller than the sum of its proper divisors (1630130140).

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

1304104040 is a wasteful number, since it uses less digits than its factorization.

1304104040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32602612 (or 32602608 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1304104040 is about 36112.3807024682. The cubic root of 1304104040 is about 1092.5401689172.

Adding to 1304104040 its reverse (404014031), we get a palindrome (1708118071).

Subtracting from 1304104040 its reverse (404014031), we obtain a palindrome (900090009).

The spelling of 1304104040 in words is "one billion, three hundred four million, one hundred four thousand, forty".