2782238145 has 8 divisors (see below), whose sum is σ = 4451581056. Its totient is φ = 1483860336.

The previous prime is 2782238143. The next prime is 2782238177. The reversal of 2782238145 is 5418322872.

2782238145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2782238145 - 2¹ = 2782238143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2782238097 and 2782238106.

It is not an unprimeable number, because it can be changed into a prime (2782238143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92741257 + ... + 92741286.

It is an arithmetic number, because the mean of its divisors is an integer number (556447632).

Almost surely, 2^2782238145 is an apocalyptic number.

It is an amenable number.

2782238145 is a deficient number, since it is larger than the sum of its proper divisors (1669342911).

2782238145 is a wasteful number, since it uses less digits than its factorization.

2782238145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185482551.

The product of its digits is 215040, while the sum is 42.

The square root of 2782238145 is about 52746.9254554235. The cubic root of 2782238145 is about 1406.4731103583.

The spelling of 2782238145 in words is "two billion, seven hundred eighty-two million, two hundred thirty-eight thousand, one hundred forty-five".