2204040 has 32 divisors (see below), whose sum is σ = 6612480. Its totient is φ = 587712.

The previous prime is 2204039. The next prime is 2204047. The reversal of 2204040 is 404022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9064 + ... + 9303.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

2^2204040 is an apocalyptic number.

2204040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204040 is an abundant number, since it is smaller than the sum of its proper divisors (4408440).

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

2204040 is a wasteful number, since it uses less digits than its factorization.

2204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18381 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2204040 is about 1484.6009564863. The cubic root of 2204040 is about 130.1387079639.

Adding to 2204040 its reverse (404022), we get a palindrome (2608062).

The spelling of 2204040 in words is "two million, two hundred four thousand, forty".