1165440744 has 256 divisors, whose sum is σ = 3657830400. Its totient is φ = 341452800.

The previous prime is 1165440737. The next prime is 1165440833. The reversal of 1165440744 is 4470445611.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1165440699 and 1165440708.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 6101689 + ... + 6101879.

It is an arithmetic number, because the mean of its divisors is an integer number (14288400).

Almost surely, 2^1165440744 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 1165440744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828915200).

1165440744 is an abundant number, since it is smaller than the sum of its proper divisors (2492389656).

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

1165440744 is a wasteful number, since it uses less digits than its factorization.

1165440744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1165440744 is about 34138.5521661362. The cubic root of 1165440744 is about 1052.3577385520.

The spelling of 1165440744 in words is "one billion, one hundred sixty-five million, four hundred forty thousand, seven hundred forty-four".