2235820 has 12 divisors (see below), whose sum is σ = 4695264. Its totient is φ = 894320.

The previous prime is 2235811. The next prime is 2235829. The reversal of 2235820 is 285322.

It is an interprime number because it is at equal distance from previous prime (2235811) and next prime (2235829).

It is a junction number, because it is equal to n+sod(n) for n = 2235791 and 2235800.

It is not an unprimeable number, because it can be changed into a prime (2235829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55876 + ... + 55915.

It is an arithmetic number, because the mean of its divisors is an integer number (391272).

2^2235820 is an apocalyptic number.

2235820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235820 is an abundant number, since it is smaller than the sum of its proper divisors (2459444).

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

2235820 is a wasteful number, since it uses less digits than its factorization.

2235820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111800 (or 111798 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2235820 is about 1495.2658626478. The cubic root of 2235820 is about 130.7612144851.

The spelling of 2235820 in words is "two million, two hundred thirty-five thousand, eight hundred twenty".