1158705408 has 144 divisors (see below), whose sum is σ = 3678022656. Its totient is φ = 316631040.

The previous prime is 1158705407. The next prime is 1158705409. The reversal of 1158705408 is 8045078511.

It is an interprime number because it is at equal distance from previous prime (1158705407) and next prime (1158705409).

It is not an unprimeable number, because it can be changed into a prime (1158705407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118963 + ... + 128333.

It is an arithmetic number, because the mean of its divisors is an integer number (25541824).

Almost surely, 2^1158705408 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 1158705408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839011328).

1158705408 is an abundant number, since it is smaller than the sum of its proper divisors (2519317248).

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

1158705408 is an equidigital number, since it uses as much as digits as its factorization.

1158705408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420 (or 9406 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 1158705408 is about 34039.7621613313. The cubic root of 1158705408 is about 1050.3265523992.

It can be divided in two parts, 115870 and 5408, that added together give a triangular number (121278 = T₄₉₂).

The spelling of 1158705408 in words is "one billion, one hundred fifty-eight million, seven hundred five thousand, four hundred eight".