2272345785 has 32 divisors (see below), whose sum is σ = 4042896000. Its totient is φ = 1210966848.

The previous prime is 2272345771. The next prime is 2272345799. The reversal of 2272345785 is 5875432722.

2272345785 is a `hidden beast` number, since 2 + 2 + 72 + 3 + 4 + 578 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2272345771) and next prime (2272345799).

It is not a de Polignac number, because 2272345785 - 2⁵ = 2272345753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2272345785.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187026 + ... + 198804.

It is an arithmetic number, because the mean of its divisors is an integer number (126340500).

Almost surely, 2^2272345785 is an apocalyptic number.

It is an amenable number.

2272345785 is a deficient number, since it is larger than the sum of its proper divisors (1770550215).

2272345785 is a wasteful number, since it uses less digits than its factorization.

2272345785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13222 (or 13216 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 2272345785 is about 47669.1282173274. The cubic root of 2272345785 is about 1314.6943797657.

The spelling of 2272345785 in words is "two billion, two hundred seventy-two million, three hundred forty-five thousand, seven hundred eighty-five".