2563728 has 20 divisors (see below), whose sum is σ = 6623088. Its totient is φ = 854560.

The previous prime is 2563723. The next prime is 2563733. The reversal of 2563728 is 8273652.

2563728 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (2563723) and next prime (2563733).

It is not an unprimeable number, because it can be changed into a prime (2563723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26658 + ... + 26753.

2^2563728 is an apocalyptic number.

It is an amenable number.

2563728 is an abundant number, since it is smaller than the sum of its proper divisors (4059360).

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

2563728 is a wasteful number, since it uses less digits than its factorization.

2563728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53422 (or 53416 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 2563728 is about 1601.1645761757. The cubic root of 2563728 is about 136.8644475925.

The spelling of 2563728 in words is "two million, five hundred sixty-three thousand, seven hundred twenty-eight".