1118138448 has 240 divisors, whose sum is σ = 3582627840. Its totient is φ = 298771200.

The previous prime is 1118138407. The next prime is 1118138513. The reversal of 1118138448 is 8448318111.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5854033 + ... + 5854223.

It is an arithmetic number, because the mean of its divisors is an integer number (14927616).

Almost surely, 2^1118138448 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 1118138448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791313920).

1118138448 is an abundant number, since it is smaller than the sum of its proper divisors (2464489392).

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

1118138448 is a wasteful number, since it uses less digits than its factorization.

1118138448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 353 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 1118138448 is about 33438.5772424605. The cubic root of 1118138448 is about 1037.9231383422.

The spelling of 1118138448 in words is "one billion, one hundred eighteen million, one hundred thirty-eight thousand, four hundred forty-eight".