1158287368 has 64 divisors (see below), whose sum is σ = 2555971200. Its totient is φ = 481697280.

The previous prime is 1158287363. The next prime is 1158287381. The reversal of 1158287368 is 8637828511.

It is not an unprimeable number, because it can be changed into a prime (1158287363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431348 + ... + 1432156.

It is an arithmetic number, because the mean of its divisors is an integer number (39937050).

Almost surely, 2^1158287368 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 1158287368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277985600).

1158287368 is an abundant number, since it is smaller than the sum of its proper divisors (1397683832).

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

1158287368 is a wasteful number, since it uses less digits than its factorization.

1158287368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550 (or 1546 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 1158287368 is about 34033.6211414536. The cubic root of 1158287368 is about 1050.2002242507.

The spelling of 1158287368 in words is "one billion, one hundred fifty-eight million, two hundred eighty-seven thousand, three hundred sixty-eight".