1158938624 has 38 divisors (see below), whose sum is σ = 2318397114. Its totient is φ = 579338240.

The previous prime is 1158938617. The next prime is 1158938633. The reversal of 1158938624 is 4268398511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1107558400 + 51380224 = 33280^2 + 7168^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259934 + ... + 264354.

Almost surely, 2^1158938624 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 1158938624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1159198557).

1158938624 is an abundant number, since it is smaller than the sum of its proper divisors (1159458490).

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

1158938624 is an frugal number, since it uses more digits than its factorization.

1158938624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457 (or 4423 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1158938624 is about 34043.1876298328. The cubic root of 1158938624 is about 1050.3970150964.

The spelling of 1158938624 in words is "one billion, one hundred fifty-eight million, nine hundred thirty-eight thousand, six hundred twenty-four".