1308871872 has 336 divisors, whose sum is σ = 4855049472. Its totient is φ = 339655680.

The previous prime is 1308871859. The next prime is 1308871901. The reversal of 1308871872 is 2781788031.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1196958 + ... + 1198050.

It is an arithmetic number, because the mean of its divisors is an integer number (14449552).

Almost surely, 2^1308871872 is an apocalyptic number.

1308871872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308871872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2427524736).

1308871872 is an abundant number, since it is smaller than the sum of its proper divisors (3546177600).

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

1308871872 is a wasteful number, since it uses less digits than its factorization.

1308871872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 1308871872 is about 36178.3342900140. The cubic root of 1308871872 is about 1093.8699996034.

The spelling of 1308871872 in words is "one billion, three hundred eight million, eight hundred seventy-one thousand, eight hundred seventy-two".