2206044 has 36 divisors (see below), whose sum is σ = 5621616. Its totient is φ = 729408.

The previous prime is 2206031. The next prime is 2206081. The reversal of 2206044 is 4406022.

Added to its reverse (4406022) it gives a triangular number (6612066 = T₃₆₃₆).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8257 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (156156).

2^2206044 is an apocalyptic number.

It is an amenable number.

2206044 is an abundant number, since it is smaller than the sum of its proper divisors (3415572).

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

2206044 is a wasteful number, since it uses less digits than its factorization.

2206044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2206044 is about 1485.2757319771. The cubic root of 2206044 is about 130.1781384292.

Adding to 2206044 its reverse (4406022), we get a triangular number (6612066 = T₃₆₃₆).

The spelling of 2206044 in words is "two million, two hundred six thousand, forty-four".