2191262072 has 32 divisors (see below), whose sum is σ = 4295371680. Its totient is φ = 1046010240.

The previous prime is 2191262071. The next prime is 2191262083. The reversal of 2191262072 is 2702621912.

It is a super-3 number, since 3×2191262072³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191262071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88538 + ... + 110550.

It is an arithmetic number, because the mean of its divisors is an integer number (134230365).

Almost surely, 2^2191262072 is an apocalyptic number.

It is an amenable number.

2191262072 is a deficient number, since it is larger than the sum of its proper divisors (2104109608).

2191262072 is a wasteful number, since it uses less digits than its factorization.

2191262072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22583 (or 22579 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2191262072 is about 46810.9182990464. The cubic root of 2191262072 is about 1298.8672720849.

Adding to 2191262072 its reverse (2702621912), we get a palindrome (4893883984).

The spelling of 2191262072 in words is "two billion, one hundred ninety-one million, two hundred sixty-two thousand, seventy-two".