1119781432 has 96 divisors (see below), whose sum is σ = 2792936160. Its totient is φ = 410572800.

The previous prime is 1119781423. The next prime is 1119781451. The reversal of 1119781432 is 2341879111.

It is a junction number, because it is equal to n+sod(n) for n = 1119781391 and 1119781400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110332 + ... + 120052.

It is an arithmetic number, because the mean of its divisors is an integer number (29093085).

Almost surely, 2^1119781432 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 1119781432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396468080).

1119781432 is an abundant number, since it is smaller than the sum of its proper divisors (1673154728).

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

1119781432 is a wasteful number, since it uses less digits than its factorization.

1119781432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9773 (or 9758 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 1119781432 is about 33463.1354179491. The cubic root of 1119781432 is about 1038.4312616271.

It can be divided in two parts, 11197 and 81432, that added together give a palindrome (92629).

The spelling of 1119781432 in words is "one billion, one hundred nineteen million, seven hundred eighty-one thousand, four hundred thirty-two".