2782238144 has 28 divisors (see below), whose sum is σ = 6309719664. Its totient is φ = 1192387584.

The previous prime is 2782238143. The next prime is 2782238177. The reversal of 2782238144 is 4418322872.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3104729 + ... + 3105624.

Almost surely, 2^2782238144 is an apocalyptic number.

It is an amenable number.

2782238144 is an abundant number, since it is smaller than the sum of its proper divisors (3527481520).

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

2782238144 is an equidigital number, since it uses as much as digits as its factorization.

2782238144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210372 (or 6210362 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 2782238144 is about 52746.9254459442. The cubic root of 2782238144 is about 1406.4731101898.

The spelling of 2782238144 in words is "two billion, seven hundred eighty-two million, two hundred thirty-eight thousand, one hundred forty-four".