1308068992 has 64 divisors (see below), whose sum is σ = 2693044800. Its totient is φ = 632392704.

The previous prime is 1308068981. The next prime is 1308069011. The reversal of 1308068992 is 2998608031.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1308068992² = 3422088975663792128, which contains 22 as substring.

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, 846973 + ... + 848515.

It is an arithmetic number, because the mean of its divisors is an integer number (42078825).

Almost surely, 2^1308068992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308068992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346522400).

1308068992 is an abundant number, since it is smaller than the sum of its proper divisors (1384975808).

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

1308068992 is a wasteful number, since it uses less digits than its factorization.

1308068992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1308068992 is about 36167.2364440525. The cubic root of 1308068992 is about 1093.6462888895.

The spelling of 1308068992 in words is "one billion, three hundred eight million, sixty-eight thousand, nine hundred ninety-two".