1183801982 has 32 divisors (see below), whose sum is σ = 2008540800. Its totient is φ = 518341600.

The previous prime is 1183801981. The next prime is 1183801999. The reversal of 1183801982 is 2891083811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183801981) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 311369 + ... + 315147.

It is an arithmetic number, because the mean of its divisors is an integer number (62766900).

Almost surely, 2^1183801982 is an apocalyptic number.

1183801982 is a deficient number, since it is larger than the sum of its proper divisors (824738818).

1183801982 is a wasteful number, since it uses less digits than its factorization.

1183801982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 1183801982 is about 34406.4235572371. The cubic root of 1183801982 is about 1057.8555143046.

The spelling of 1183801982 in words is "one billion, one hundred eighty-three million, eight hundred one thousand, nine hundred eighty-two".