1118260080 has 400 divisors, whose sum is σ = 4504800960. Its totient is φ = 251817984.

The previous prime is 1118260057. The next prime is 1118260109. The reversal of 1118260080 is 800628111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4036902 + ... + 4037178.

Almost surely, 2^1118260080 is an apocalyptic number.

1118260080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118260080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252400480).

1118260080 is an abundant number, since it is smaller than the sum of its proper divisors (3386540880).

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

1118260080 is a wasteful number, since it uses less digits than its factorization.

1118260080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 1118260080 is about 33440.3959306704. The cubic root of 1118260080 is about 1037.9607723489.

Adding to 1118260080 its reverse (800628111), we get a palindrome (1918888191).

The spelling of 1118260080 in words is "one billion, one hundred eighteen million, two hundred sixty thousand, eighty".