2820430 has 16 divisors (see below), whose sum is σ = 5117904. Its totient is φ = 1119040.

The previous prime is 2820407. The next prime is 2820479. The reversal of 2820430 is 340282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2820398 and 2820407.

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, 234 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (319869).

2^2820430 is an apocalyptic number.

2820430 is a deficient number, since it is larger than the sum of its proper divisors (2297474).

2820430 is a wasteful number, since it uses less digits than its factorization.

2820430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2820430 is about 1679.4135881313. The cubic root of 2820430 is about 141.2879450097.

The spelling of 2820430 in words is "two million, eight hundred twenty thousand, four hundred thirty".