1099718244 has 27 divisors (see below), whose sum is σ = 2780346387. Its totient is φ = 366506424.

The previous prime is 1099718237. The next prime is 1099718261. The reversal of 1099718244 is 4428179901.

It is a happy number.

The square root of 1099718244 is 33162.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 1099718244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 196209 + ... + 201735.

Almost surely, 2^1099718244 is an apocalyptic number.

1099718244 is the 33162-nd square number.

It is an amenable number.

1099718244 is an abundant number, since it is smaller than the sum of its proper divisors (1680628143).

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

1099718244 is an frugal number, since it uses more digits than its factorization.

1099718244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064 (or 5532 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The cubic root of 1099718244 is about 1032.1919712282.

It can be divided in two parts, 10997 and 18244, that added together give a square (29241 = 171²).

The spelling of 1099718244 in words is "one billion, ninety-nine million, seven hundred eighteen thousand, two hundred forty-four".