1158273744 has 80 divisors (see below), whose sum is σ = 3286694400. Its totient is φ = 349861248.

The previous prime is 1158273709. The next prime is 1158273749. The reversal of 1158273744 is 4473728511.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1158273696 and 1158273705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158273749) 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 15 ways as a sum of consecutive naturals, for example, 6634 + ... + 48585.

It is an arithmetic number, because the mean of its divisors is an integer number (41083680).

Almost surely, 2^1158273744 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 1158273744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643347200).

1158273744 is an abundant number, since it is smaller than the sum of its proper divisors (2128420656).

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

1158273744 is a wasteful number, since it uses less digits than its factorization.

1158273744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55272 (or 55266 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 1158273744 is about 34033.4209858486. The cubic root of 1158273744 is about 1050.1961066819.

The spelling of 1158273744 in words is "one billion, one hundred fifty-eight million, two hundred seventy-three thousand, seven hundred forty-four".