1329686630 has 8 divisors (see below), whose sum is σ = 2393435952. Its totient is φ = 531874648.

The previous prime is 1329686609. The next prime is 1329686647. The reversal of 1329686630 is 366869231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66484322 + ... + 66484341.

It is an arithmetic number, because the mean of its divisors is an integer number (299179494).

Almost surely, 2^1329686630 is an apocalyptic number.

1329686630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1329686630 is a deficient number, since it is larger than the sum of its proper divisors (1063749322).

1329686630 is a wasteful number, since it uses less digits than its factorization.

1329686630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132968670.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 1329686630 is about 36464.8684352487. The cubic root of 1329686630 is about 1099.6380710115.

The spelling of 1329686630 in words is "one billion, three hundred twenty-nine million, six hundred eighty-six thousand, six hundred thirty".