2272187291 has 16 divisors (see below), whose sum is σ = 2524106880. Its totient is φ = 2027921280.

The previous prime is 2272187287. The next prime is 2272187321. The reversal of 2272187291 is 1927812722.

It is not a de Polignac number, because 2272187291 - 2² = 2272187287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272187201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612755 + ... + 616451.

It is an arithmetic number, because the mean of its divisors is an integer number (157756680).

Almost surely, 2^2272187291 is an apocalyptic number.

2272187291 is a deficient number, since it is larger than the sum of its proper divisors (251919589).

2272187291 is a wasteful number, since it uses less digits than its factorization.

2272187291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714.

The product of its digits is 56448, while the sum is 41.

The square root of 2272187291 is about 47667.4657497124. The cubic root of 2272187291 is about 1314.6638128192.

The spelling of 2272187291 in words is "two billion, two hundred seventy-two million, one hundred eighty-seven thousand, two hundred ninety-one".