1158433500 has 144 divisors (see below), whose sum is σ = 3924359712. Its totient is φ = 264768000.

The previous prime is 1158433489. The next prime is 1158433501. The reversal of 1158433500 is 53348511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158433501) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 65620 + ... + 81380.

It is an arithmetic number, because the mean of its divisors is an integer number (27252498).

Almost surely, 2^1158433500 is an apocalyptic number.

1158433500 is a gapful number since it is divisible by the number (10) 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 1158433500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962179856).

1158433500 is an abundant number, since it is smaller than the sum of its proper divisors (2765926212).

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

1158433500 is a wasteful number, since it uses less digits than its factorization.

1158433500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15797 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1158433500 is about 34035.7679507897. The cubic root of 1158433500 is about 1050.2443875588.

The spelling of 1158433500 in words is "one billion, one hundred fifty-eight million, four hundred thirty-three thousand, five hundred".