3991048292 has 24 divisors (see below), whose sum is σ = 8707742400. Its totient is φ = 1554953760.

The previous prime is 3991048247. The next prime is 3991048307. The reversal of 3991048292 is 2928401993.

It is a super-2 number, since 2×3991048292² = 31856932938152234528, 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, 6478667 + ... + 6479282.

It is an arithmetic number, because the mean of its divisors is an integer number (362822600).

Almost surely, 2^3991048292 is an apocalyptic number.

It is an amenable number.

3991048292 is an abundant number, since it is smaller than the sum of its proper divisors (4716694108).

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

3991048292 is a wasteful number, since it uses less digits than its factorization.

3991048292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12957971 (or 12957969 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 3991048292 is about 63174.7440992047. The cubic root of 3991048292 is about 1586.2160049538.

The spelling of 3991048292 in words is "three billion, nine hundred ninety-one million, forty-eight thousand, two hundred ninety-two".