1118434284 has 192 divisors, whose sum is σ = 3396556800. Its totient is φ = 314496000.

The previous prime is 1118434223. The next prime is 1118434309. The reversal of 1118434284 is 4824348111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1595134 + ... + 1595834.

It is an arithmetic number, because the mean of its divisors is an integer number (17690400).

Almost surely, 2^1118434284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118434284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698278400).

1118434284 is an abundant number, since it is smaller than the sum of its proper divisors (2278122516).

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

1118434284 is a wasteful number, since it uses less digits than its factorization.

1118434284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 813 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 1118434284 is about 33443.0005232784. Note that the first 3 decimals coincide. The cubic root of 1118434284 is about 1038.0146678404.

The spelling of 1118434284 in words is "one billion, one hundred eighteen million, four hundred thirty-four thousand, two hundred eighty-four".