2199544 has 8 divisors (see below), whose sum is σ = 4124160. Its totient is φ = 1099768.

The previous prime is 2199529. The next prime is 2199577. The reversal of 2199544 is 4459912.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2¹⁹ + 1 + 9³ + 9⁶ + 5⁷ + 4⁷ + 4¹⁰ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137464 + ... + 137479.

It is an arithmetic number, because the mean of its divisors is an integer number (515520).

2^2199544 is an apocalyptic number.

It is an amenable number.

2199544 is a deficient number, since it is larger than the sum of its proper divisors (1924616).

2199544 is a wasteful number, since it uses less digits than its factorization.

2199544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274949 (or 274945 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 2199544 is about 1483.0859718843. The cubic root of 2199544 is about 130.0501581597.

The spelling of 2199544 in words is "two million, one hundred ninety-nine thousand, five hundred forty-four".