10999944 has 24 divisors (see below), whose sum is σ = 29791710. Its totient is φ = 3666624.

The previous prime is 10999871. The next prime is 10999949. The reversal of 10999944 is 44999901.

It can be written as a sum of positive squares in only one way, i.e., 9922500 + 1077444 = 3150^2 + 1038^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10999944.

It is not an unprimeable number, because it can be changed into a prime (10999949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76317 + ... + 76460.

Almost surely, 2^10999944 is an apocalyptic number.

It is an amenable number.

10999944 is an abundant number, since it is smaller than the sum of its proper divisors (18791766).

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

10999944 is a wasteful number, since it uses less digits than its factorization.

10999944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152789 (or 152782 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 10999944 is about 3316.6163480270. The cubic root of 10999944 is about 222.3976316536.

The spelling of 10999944 in words is "ten million, nine hundred ninety-nine thousand, nine hundred forty-four".