1159587044 has 108 divisors (see below), whose sum is σ = 2668946112. Its totient is φ = 431476320.

The previous prime is 1159587029. The next prime is 1159587061. The reversal of 1159587044 is 4407859511.

It is a super-2 number, since 2×1159587044² = 2689284225225315872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1159586986 and 1159587004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1791929 + ... + 1792575.

It is an arithmetic number, because the mean of its divisors is an integer number (24712464).

Almost surely, 2^1159587044 is an apocalyptic number.

1159587044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159587044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334473056).

1159587044 is an abundant number, since it is smaller than the sum of its proper divisors (1509359068).

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

1159587044 is a wasteful number, since it uses less digits than its factorization.

1159587044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 1159587044 is about 34052.7097893839. The cubic root of 1159587044 is about 1050.5928757555.

The spelling of 1159587044 in words is "one billion, one hundred fifty-nine million, five hundred eighty-seven thousand, forty-four".