2272946645 has 16 divisors (see below), whose sum is σ = 2743466880. Its totient is φ = 1807769664.

The previous prime is 2272946633. The next prime is 2272946693. The reversal of 2272946645 is 5466492722.

It is a cyclic number.

It is not a de Polignac number, because 2272946645 - 2⁶ = 2272946581 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272946645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672179 + ... + 675551.

It is an arithmetic number, because the mean of its divisors is an integer number (171466680).

Almost surely, 2^2272946645 is an apocalyptic number.

It is an amenable number.

2272946645 is a deficient number, since it is larger than the sum of its proper divisors (470520235).

2272946645 is a wasteful number, since it uses less digits than its factorization.

2272946645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124.

The product of its digits is 1451520, while the sum is 47.

The square root of 2272946645 is about 47675.4302025687. The cubic root of 2272946645 is about 1314.8102479365.

The spelling of 2272946645 in words is "two billion, two hundred seventy-two million, nine hundred forty-six thousand, six hundred forty-five".