2560634 has 4 divisors (see below), whose sum is σ = 3840954. Its totient is φ = 1280316.

The previous prime is 2560603. The next prime is 2560637. The reversal of 2560634 is 4360652.

2560634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 1203409 = 1165^2 + 1097^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2560637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640157 + ... + 640160.

2^2560634 is an apocalyptic number.

2560634 is a deficient number, since it is larger than the sum of its proper divisors (1280320).

2560634 is a wasteful number, since it uses less digits than its factorization.

2560634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280319.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2560634 is about 1600.1981127348. The cubic root of 2560634 is about 136.8093677682.

The spelling of 2560634 in words is "two million, five hundred sixty thousand, six hundred thirty-four".