2291241972 has 12 divisors (see below), whose sum is σ = 5346231296. Its totient is φ = 763747320.

The previous prime is 2291241943. The next prime is 2291241989. The reversal of 2291241972 is 2791421922.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2291241972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95468404 + ... + 95468427.

Almost surely, 2^2291241972 is an apocalyptic number.

It is an amenable number.

2291241972 is an abundant number, since it is smaller than the sum of its proper divisors (3054989324).

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

2291241972 is a wasteful number, since it uses less digits than its factorization.

2291241972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190936838 (or 190936836 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 2291241972 is about 47866.9193911620. The cubic root of 2291241972 is about 1318.3285340580.

The spelling of 2291241972 in words is "two billion, two hundred ninety-one million, two hundred forty-one thousand, nine hundred seventy-two".