2190544 has 20 divisors (see below), whose sum is σ = 4391460. Its totient is φ = 1057280.

The previous prime is 2190541. The next prime is 2190577. The reversal of 2190544 is 4450912.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 1024144 = 1080^2 + 1012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190541) 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, 1897 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (219573).

2^2190544 is an apocalyptic number.

It is an amenable number.

2190544 is an abundant number, since it is smaller than the sum of its proper divisors (2200916).

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

2190544 is a wasteful number, since it uses less digits than its factorization.

2190544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2190544 is about 1480.0486478491. The cubic root of 2190544 is about 129.8725377888.

The spelling of 2190544 in words is "two million, one hundred ninety thousand, five hundred forty-four".