2780057376 has 120 divisors (see below), whose sum is σ = 8231376384. Its totient is φ = 920419200.

The previous prime is 2780057369. The next prime is 2780057393. The reversal of 2780057376 is 6737500872.

2780057376 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 0 + 573 + 76 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 387841 + ... + 394943.

Almost surely, 2^2780057376 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 2780057376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4115688192).

2780057376 is an abundant number, since it is smaller than the sum of its proper divisors (5451319008).

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

2780057376 is a wasteful number, since it uses less digits than its factorization.

2780057376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276 (or 7259 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 2780057376 is about 52726.2494019819. The cubic root of 2780057376 is about 1406.1055412141.

The spelling of 2780057376 in words is "two billion, seven hundred eighty million, fifty-seven thousand, three hundred seventy-six".