2783894742 has 24 divisors (see below), whose sum is σ = 6038794944. Its totient is φ = 926884464.

The previous prime is 2783894731. The next prime is 2783894747. The reversal of 2783894742 is 2474983872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783894747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74073 + ... + 105140.

It is an arithmetic number, because the mean of its divisors is an integer number (251616456).

Almost surely, 2^2783894742 is an apocalyptic number.

2783894742 is an abundant number, since it is smaller than the sum of its proper divisors (3254900202).

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

2783894742 is a wasteful number, since it uses less digits than its factorization.

2783894742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180084 (or 180081 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 2783894742 is about 52762.6263751152. The cubic root of 2783894742 is about 1406.7522018346.

The spelling of 2783894742 in words is "two billion, seven hundred eighty-three million, eight hundred ninety-four thousand, seven hundred forty-two".