1183242816 has 196 divisors, whose sum is σ = 4024408512. Its totient is φ = 337976064.

The previous prime is 1183242791. The next prime is 1183242829. The reversal of 1183242816 is 6182423811.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 324781 + ... + 328403.

Almost surely, 2^1183242816 is an apocalyptic number.

1183242816 is a gapful number since it is divisible by the number (16) 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 1183242816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2012204256).

1183242816 is an abundant number, since it is smaller than the sum of its proper divisors (2841165696).

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

1183242816 is an frugal number, since it uses more digits than its factorization.

1183242816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3635 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1183242816 is about 34398.2967020171. The cubic root of 1183242816 is about 1057.6889295763.

The spelling of 1183242816 in words is "one billion, one hundred eighty-three million, two hundred forty-two thousand, eight hundred sixteen".