2782312 has 32 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 1241280.

The previous prime is 2782291. The next prime is 2782319. The reversal of 2782312 is 2132872.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2782319) 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, 2793 + ... + 3655.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^2782312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2782312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903040).

2782312 is an abundant number, since it is smaller than the sum of its proper divisors (3023768).

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

2782312 is a wasteful number, since it uses less digits than its factorization.

2782312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 909 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 2782312 is about 1668.0263786883. The cubic root of 2782312 is about 140.6485555273.

The spelling of 2782312 in words is "two million, seven hundred eighty-two thousand, three hundred twelve".