2772172332 has 36 divisors (see below), whose sum is σ = 7170403240. Its totient is φ = 902567232.

The previous prime is 2772172309. The next prime is 2772172339. The reversal of 2772172332 is 2332712772.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2772172339) 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 11 ways as a sum of consecutive naturals, for example, 893857 + ... + 896952.

Almost surely, 2^2772172332 is an apocalyptic number.

It is an amenable number.

2772172332 is an abundant number, since it is smaller than the sum of its proper divisors (4398230908).

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

2772172332 is a wasteful number, since it uses less digits than its factorization.

2772172332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790862 (or 1790857 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 2772172332 is about 52651.4228867559. The cubic root of 2772172332 is about 1404.7749088713.

The spelling of 2772172332 in words is "two billion, seven hundred seventy-two million, one hundred seventy-two thousand, three hundred thirty-two".