1158993936 has 45 divisors (see below), whose sum is σ = 3244717021. Its totient is φ = 386195136.

The previous prime is 1158993907. The next prime is 1158993937. The reversal of 1158993936 is 6393998511.

The square root of 1158993936 is 34044.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 1119303936 = 6300^2 + 33456^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158993937) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 407110 + ... + 409946.

Almost surely, 2^1158993936 is an apocalyptic number.

1158993936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1158993936 is the 34044-th square number.

It is an amenable number.

1158993936 is an abundant number, since it is smaller than the sum of its proper divisors (2085723085).

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

1158993936 is an frugal number, since it uses more digits than its factorization.

1158993936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688 (or 2842 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The cubic root of 1158993936 is about 1050.4137253962.

It can be divided in two parts, 1158993 and 936, that added together give a square (1159929 = 1077²).

The spelling of 1158993936 in words is "one billion, one hundred fifty-eight million, nine hundred ninety-three thousand, nine hundred thirty-six".