1309704632 has 16 divisors (see below), whose sum is σ = 2507945760. Its totient is φ = 640919104.

The previous prime is 1309704629. The next prime is 1309704689. The reversal of 1309704632 is 2364079031.

It is a junction number, because it is equal to n+sod(n) for n = 1309704592 and 1309704601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741253 + ... + 1742004.

It is an arithmetic number, because the mean of its divisors is an integer number (156746610).

Almost surely, 2^1309704632 is an apocalyptic number.

It is an amenable number.

1309704632 is a deficient number, since it is larger than the sum of its proper divisors (1198241128).

1309704632 is a wasteful number, since it uses less digits than its factorization.

1309704632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483310 (or 3483306 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 1309704632 is about 36189.8415580947. The cubic root of 1309704632 is about 1094.1019393060.

The spelling of 1309704632 in words is "one billion, three hundred nine million, seven hundred four thousand, six hundred thirty-two".