2800630 has 16 divisors (see below), whose sum is σ = 5761440. Its totient is φ = 960192.

The previous prime is 2800627. The next prime is 2800639. The reversal of 2800630 is 360082.

2800630 is a modest number, since divided by 630 gives 280 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2800598 and 2800607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19935 + ... + 20074.

It is an arithmetic number, because the mean of its divisors is an integer number (360090).

2^2800630 is an apocalyptic number.

2800630 is an abundant number, since it is smaller than the sum of its proper divisors (2960810).

2800630 is a wasteful number, since it uses less digits than its factorization.

2800630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40023.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2800630 is about 1673.5082909863. The cubic root of 2800630 is about 140.9565447967.

The spelling of 2800630 in words is "two million, eight hundred thousand, six hundred thirty".