2193040 has 40 divisors (see below), whose sum is σ = 5178240. Its totient is φ = 863616.

The previous prime is 2193031. The next prime is 2193041. The reversal of 2193040 is 403912.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2192999 and 2193017.

It is not an unprimeable number, because it can be changed into a prime (2193041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6147 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (129456).

2^2193040 is an apocalyptic number.

2193040 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 2193040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2589120).

2193040 is an abundant number, since it is smaller than the sum of its proper divisors (2985200).

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

2193040 is a wasteful number, since it uses less digits than its factorization.

2193040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2193040 is about 1480.8916233135. The cubic root of 2193040 is about 129.9218465162.

Adding to 2193040 its reverse (403912), we get a palindrome (2596952).

The spelling of 2193040 in words is "two million, one hundred ninety-three thousand, forty".