2185340 has 12 divisors (see below), whose sum is σ = 4589256. Its totient is φ = 874128.

The previous prime is 2185297. The next prime is 2185343. The reversal of 2185340 is 435812.

2185340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185343) 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, 54614 + ... + 54653.

It is an arithmetic number, because the mean of its divisors is an integer number (382438).

2^2185340 is an apocalyptic number.

2185340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2185340 is an abundant number, since it is smaller than the sum of its proper divisors (2403916).

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

2185340 is a wasteful number, since it uses less digits than its factorization.

2185340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109276 (or 109274 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2185340 is about 1478.2895521514. The cubic root of 2185340 is about 129.7696116667.

The spelling of 2185340 in words is "two million, one hundred eighty-five thousand, three hundred forty".