2182840 has 64 divisors (see below), whose sum is σ = 5533920. Its totient is φ = 774400.

The previous prime is 2182819. The next prime is 2182841. The reversal of 2182840 is 482812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53220 + ... + 53260.

2^2182840 is an apocalyptic number.

2182840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2182840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766960).

2182840 is an abundant number, since it is smaller than the sum of its proper divisors (3351080).

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

2182840 is a wasteful number, since it uses less digits than its factorization.

2182840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2182840 is about 1477.4437383535. The cubic root of 2182840 is about 129.7201078793.

The spelling of 2182840 in words is "two million, one hundred eighty-two thousand, eight hundred forty".