2308820 has 24 divisors (see below), whose sum is σ = 4923744. Its totient is φ = 909216.

The previous prime is 2308819. The next prime is 2308841. The reversal of 2308820 is 288032.

2308820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

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, 479 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (205156).

2^2308820 is an apocalyptic number.

2308820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2308820 is an abundant number, since it is smaller than the sum of its proper divisors (2614924).

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

2308820 is a wasteful number, since it uses less digits than its factorization.

2308820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2308820 is about 1519.4801742701. The cubic root of 2308820 is about 132.1691281727.

The spelling of 2308820 in words is "two million, three hundred eight thousand, eight hundred twenty".