1165788342 has 128 divisors (see below), whose sum is σ = 2796595200. Its totient is φ = 359251200.

The previous prime is 1165788331. The next prime is 1165788361. The reversal of 1165788342 is 2438875611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4301667 + ... + 4301937.

It is an arithmetic number, because the mean of its divisors is an integer number (21848400).

Almost surely, 2^1165788342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165788342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398297600).

1165788342 is an abundant number, since it is smaller than the sum of its proper divisors (1630806858).

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

1165788342 is a wasteful number, since it uses less digits than its factorization.

1165788342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 413 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1165788342 is about 34143.6427757789. The cubic root of 1165788342 is about 1052.4623516454.

It can be divided in two parts, 11657 and 88342, that added together give a palindrome (99999).

The spelling of 1165788342 in words is "one billion, one hundred sixty-five million, seven hundred eighty-eight thousand, three hundred forty-two".