1285968108 has 24 divisors (see below), whose sum is σ = 3158518720. Its totient is φ = 406095120.

The previous prime is 1285968067. The next prime is 1285968113. The reversal of 1285968108 is 8018695821.

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, 2819878 + ... + 2820333.

Almost surely, 2^1285968108 is an apocalyptic number.

It is an amenable number.

1285968108 is an abundant number, since it is smaller than the sum of its proper divisors (1872550612).

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

1285968108 is a wasteful number, since it uses less digits than its factorization.

1285968108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640237 (or 5640235 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 48.

The square root of 1285968108 is about 35860.3974880369. The cubic root of 1285968108 is about 1087.4519242058.

The spelling of 1285968108 in words is "one billion, two hundred eighty-five million, nine hundred sixty-eight thousand, one hundred eight".