2243772216 has 48 divisors (see below), whose sum is σ = 6945010800. Its totient is φ = 641077632.

The previous prime is 2243772197. The next prime is 2243772221. The reversal of 2243772216 is 6122773422.

It is a happy number.

2243772216 is a `hidden beast` number, since 2 + 2 + 437 + 7 + 2 + 216 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2225461 + ... + 2226468.

It is an arithmetic number, because the mean of its divisors is an integer number (144687725).

Almost surely, 2^2243772216 is an apocalyptic number.

It is an amenable number.

2243772216 is an abundant number, since it is smaller than the sum of its proper divisors (4701238584).

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

2243772216 is a wasteful number, since it uses less digits than its factorization.

2243772216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451948 (or 4451941 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 2243772216 is about 47368.4728062875. The cubic root of 2243772216 is about 1309.1605864954.

The spelling of 2243772216 in words is "two billion, two hundred forty-three million, seven hundred seventy-two thousand, two hundred sixteen".