2560784 has 10 divisors (see below), whose sum is σ = 4961550. Its totient is φ = 1280384.

The previous prime is 2560783. The next prime is 2560793. The reversal of 2560784 is 4870652.

It can be written as a sum of positive squares in only one way, i.e., 2560000 + 784 = 1600^2 + 28^2 .

It is a super-2 number, since 2×2560784² = 13115229389312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2560784.

It is not an unprimeable number, because it can be changed into a prime (2560783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80009 + ... + 80040.

It is an arithmetic number, because the mean of its divisors is an integer number (496155).

2^2560784 is an apocalyptic number.

It is an amenable number.

2560784 is a deficient number, since it is larger than the sum of its proper divisors (2400766).

2560784 is a wasteful number, since it uses less digits than its factorization.

2560784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160057 (or 160051 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2560784 is about 1600.2449812451. The cubic root of 2560784 is about 136.8120391124.

The spelling of 2560784 in words is "two million, five hundred sixty thousand, seven hundred eighty-four".