2820630 has 32 divisors (see below), whose sum is σ = 6822144. Its totient is φ = 746336.

The previous prime is 2820619. The next prime is 2820641. The reversal of 2820630 is 360282.

It is an interprime number because it is at equal distance from previous prime (2820619) and next prime (2820641).

It is a junction number, because it is equal to n+sod(n) for n = 2820597 and 2820606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4729 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (213192).

2^2820630 is an apocalyptic number.

2820630 is an abundant number, since it is smaller than the sum of its proper divisors (4001514).

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

2820630 is a wasteful number, since it uses less digits than its factorization.

2820630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2820630 is about 1679.4731316696. The cubic root of 2820630 is about 141.2912845620.

The spelling of 2820630 in words is "two million, eight hundred twenty thousand, six hundred thirty".