2500646 has 16 divisors (see below), whose sum is σ = 3950208. Its totient is φ = 1185600.

The previous prime is 2500639. The next prime is 2500651. The reversal of 2500646 is 6460052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2906 + ... + 3666.

It is an arithmetic number, because the mean of its divisors is an integer number (246888).

2^2500646 is an apocalyptic number.

2500646 is a deficient number, since it is larger than the sum of its proper divisors (1449562).

2500646 is a wasteful number, since it uses less digits than its factorization.

2500646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2500646 is about 1581.3431000261. The cubic root of 2500646 is about 135.7325699149.

Adding to 2500646 its reverse (6460052), we get a palindrome (8960698).

It can be divided in two parts, 25006 and 46, that added together give a palindrome (25052).

The spelling of 2500646 in words is "two million, five hundred thousand, six hundred forty-six".