2783838456 has 160 divisors (see below), whose sum is σ = 9058214880. Its totient is φ = 782265600.

The previous prime is 2783838437. The next prime is 2783838461. The reversal of 2783838456 is 6548383872.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 271666 + ... + 281726.

It is an arithmetic number, because the mean of its divisors is an integer number (56613843).

Almost surely, 2^2783838456 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 2783838456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4529107440).

2783838456 is an abundant number, since it is smaller than the sum of its proper divisors (6274376424).

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

2783838456 is a wasteful number, since it uses less digits than its factorization.

2783838456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147 (or 10134 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 2783838456 is about 52762.0929835047. The cubic root of 2783838456 is about 1406.7427209939.

The spelling of 2783838456 in words is "two billion, seven hundred eighty-three million, eight hundred thirty-eight thousand, four hundred fifty-six".