1308642108 has 12 divisors (see below), whose sum is σ = 3053498280. Its totient is φ = 436214032.

The previous prime is 1308642079. The next prime is 1308642121. The reversal of 1308642108 is 8012468031.

It is a tau number, because it is divible by the number of its divisors (12).

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, 54526743 + ... + 54526766.

It is an arithmetic number, because the mean of its divisors is an integer number (254458190).

Almost surely, 2^1308642108 is an apocalyptic number.

It is an amenable number.

1308642108 is an abundant number, since it is smaller than the sum of its proper divisors (1744856172).

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

1308642108 is a wasteful number, since it uses less digits than its factorization.

1308642108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109053516 (or 109053514 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1308642108 is about 36175.1587142337. The cubic root of 1308642108 is about 1093.8059885875.

The spelling of 1308642108 in words is "one billion, three hundred eight million, six hundred forty-two thousand, one hundred eight".