1118099844 has 27 divisors (see below), whose sum is σ = 2826815173. Its totient is φ = 372633072.

The previous prime is 1118099813. The next prime is 1118099861. The reversal of 1118099844 is 4489908111.

The square root of 1118099844 is 33438.

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

It can be written as a sum of positive squares in only one way, i.e., 48024900 + 1070074944 = 6930^2 + 32712^2 .

It is a super-2 number, since 2×1118099844² = 2500294522305648672, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118099844.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 197842 + ... + 203414.

Almost surely, 2^1118099844 is an apocalyptic number.

1118099844 is the 33438-th square number.

It is an amenable number.

1118099844 is an abundant number, since it is smaller than the sum of its proper divisors (1708715329).

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

1118099844 is an frugal number, since it uses more digits than its factorization.

1118099844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 5578 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The cubic root of 1118099844 is about 1037.9111933557.

Multiplying 1118099844 by its product of nonzero digits (82944), we get a square (92739673460736 = 9630144²).

The spelling of 1118099844 in words is "one billion, one hundred eighteen million, ninety-nine thousand, eight hundred forty-four".