1081788433 has 8 divisors (see below), whose sum is σ = 1183702176. Its totient is φ = 980469600.

The previous prime is 1081788419. The next prime is 1081788439. The reversal of 1081788433 is 3348871801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1081788433 - 2¹³ = 1081780241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081788433.

It is not an unprimeable number, because it can be changed into a prime (1081788439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 144916 + ... + 152197.

It is an arithmetic number, because the mean of its divisors is an integer number (147962772).

Almost surely, 2^1081788433 is an apocalyptic number.

It is an amenable number.

1081788433 is a deficient number, since it is larger than the sum of its proper divisors (101913743).

1081788433 is a wasteful number, since it uses less digits than its factorization.

1081788433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297455.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1081788433 is about 32890.5523364993. The cubic root of 1081788433 is about 1026.5515848382.

It can be divided in two parts, 108178 and 8433, that added together give a palindrome (116611).

The spelling of 1081788433 in words is "one billion, eighty-one million, seven hundred eighty-eight thousand, four hundred thirty-three".