2657630 has 16 divisors (see below), whose sum is σ = 4938624. Its totient is φ = 1028640.

The previous prime is 2657617. The next prime is 2657651. The reversal of 2657630 is 367562.

2657630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2657593 and 2657602.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3977 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (308664).

2^2657630 is an apocalyptic number.

2657630 is a deficient number, since it is larger than the sum of its proper divisors (2280994).

2657630 is a wasteful number, since it uses less digits than its factorization.

2657630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 2657630 is about 1630.2239110012. The cubic root of 2657630 is about 138.5154357283.

The spelling of 2657630 in words is "two million, six hundred fifty-seven thousand, six hundred thirty".