1320435404 has 6 divisors (see below), whose sum is σ = 2310761964. Its totient is φ = 660217700.

The previous prime is 1320435401. The next prime is 1320435427. The reversal of 1320435404 is 4045340231.

It is a super-2 number, since 2×1320435404² = 3487099312273286432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320435401) 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 as a sum of consecutive naturals, namely, 165054422 + ... + 165054429.

It is an arithmetic number, because the mean of its divisors is an integer number (385126994).

Almost surely, 2^1320435404 is an apocalyptic number.

It is an amenable number.

1320435404 is a deficient number, since it is larger than the sum of its proper divisors (990326560).

1320435404 is a wasteful number, since it uses less digits than its factorization.

1320435404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330108855 (or 330108853 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1320435404 is about 36337.7958054695. The cubic root of 1320435404 is about 1097.0819086778.

Adding to 1320435404 its reverse (4045340231), we get a palindrome (5365775635).

The spelling of 1320435404 in words is "one billion, three hundred twenty million, four hundred thirty-five thousand, four hundred four".