1158838688 has 24 divisors (see below), whose sum is σ = 2607387552. Its totient is φ = 496645056.

The previous prime is 1158838687. The next prime is 1158838729. The reversal of 1158838688 is 8868388511.

It is a happy number.

It is a super-2 number, since 2×1158838688² = 2685814209611122688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (1158838687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586470 + ... + 2586917.

It is an arithmetic number, because the mean of its divisors is an integer number (108641148).

Almost surely, 2^1158838688 is an apocalyptic number.

It is an amenable number.

1158838688 is an abundant number, since it is smaller than the sum of its proper divisors (1448548864).

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

1158838688 is an equidigital number, since it uses as much as digits as its factorization.

1158838688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173404 (or 5173396 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 56.

The square root of 1158838688 is about 34041.7198155440. The cubic root of 1158838688 is about 1050.3668220987.

The spelling of 1158838688 in words is "one billion, one hundred fifty-eight million, eight hundred thirty-eight thousand, six hundred eighty-eight".