3091081920 has 112 divisors (see below), whose sum is σ = 10130869248. Its totient is φ = 797690880.

The previous prime is 3091081913. The next prime is 3091081969. The reversal of 3091081920 is 291801903.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22174 + ... + 81693.

Almost surely, 2^3091081920 is an apocalyptic number.

3091081920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3091081920 is an abundant number, since it is smaller than the sum of its proper divisors (7039787328).

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

3091081920 is a wasteful number, since it uses less digits than its factorization.

3091081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103918 (or 103908 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 3091081920 is about 55597.4992243356. The cubic root of 3091081920 is about 1456.7001724395.

The spelling of 3091081920 in words is "three billion, ninety-one million, eighty-one thousand, nine hundred twenty".