2206544 has 10 divisors (see below), whose sum is σ = 4275210. Its totient is φ = 1103264.

The previous prime is 2206543. The next prime is 2206559. The reversal of 2206544 is 4456022.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 547600 = 1288^2 + 740^2 .

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68939 + ... + 68970.

It is an arithmetic number, because the mean of its divisors is an integer number (427521).

2^2206544 is an apocalyptic number.

It is an amenable number.

2206544 is a deficient number, since it is larger than the sum of its proper divisors (2068666).

2206544 is a wasteful number, since it uses less digits than its factorization.

2206544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137917 (or 137911 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2206544 is about 1485.4440413560. Note that the first 3 decimals coincide. The cubic root of 2206544 is about 130.1879726471.

The spelling of 2206544 in words is "two million, two hundred six thousand, five hundred forty-four".