1304405122 has 16 divisors (see below), whose sum is σ = 1972708992. Its totient is φ = 646854160.

The previous prime is 1304405107. The next prime is 1304405143. The reversal of 1304405122 is 2215044031.

It is a junction number, because it is equal to n+sod(n) for n = 1304405093 and 1304405102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144753 + ... + 153499.

It is an arithmetic number, because the mean of its divisors is an integer number (123294312).

Almost surely, 2^1304405122 is an apocalyptic number.

1304405122 is a deficient number, since it is larger than the sum of its proper divisors (668303870).

1304405122 is a wasteful number, since it uses less digits than its factorization.

1304405122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1304405122 is about 36116.5491430175. The cubic root of 1304405122 is about 1092.6242416746.

Adding to 1304405122 its reverse (2215044031), we get a palindrome (3519449153).

The spelling of 1304405122 in words is "one billion, three hundred four million, four hundred five thousand, one hundred twenty-two".