1118752820 has 12 divisors (see below), whose sum is σ = 2349380964. Its totient is φ = 447501120.

The previous prime is 1118752787. The next prime is 1118752837. The reversal of 1118752820 is 282578111.

It can be written as a sum of positive squares in 2 ways, for example, as 670499236 + 448253584 = 25894^2 + 21172^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27968801 + ... + 27968840.

It is an arithmetic number, because the mean of its divisors is an integer number (195781747).

Almost surely, 2^1118752820 is an apocalyptic number.

1118752820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118752820 is an abundant number, since it is smaller than the sum of its proper divisors (1230628144).

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

1118752820 is a wasteful number, since it uses less digits than its factorization.

1118752820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55937650 (or 55937648 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 1118752820 is about 33447.7625559618. The cubic root of 1118752820 is about 1038.1132025093.

The spelling of 1118752820 in words is "one billion, one hundred eighteen million, seven hundred fifty-two thousand, eight hundred twenty".