1099444 has 6 divisors (see below), whose sum is σ = 1924034. Its totient is φ = 549720.

The previous prime is 1099433. The next prime is 1099459. The reversal of 1099444 is 4449901.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 289444 = 900^2 + 538^2 .

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, 137427 + ... + 137434.

2^1099444 is an apocalyptic number.

It is an amenable number.

1099444 is a deficient number, since it is larger than the sum of its proper divisors (824590).

1099444 is a wasteful number, since it uses less digits than its factorization.

1099444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274865 (or 274863 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1099444 is about 1048.5437520676. The cubic root of 1099444 is about 103.2106162586.

The spelling of 1099444 in words is "one million, ninety-nine thousand, four hundred forty-four".