1158833220 has 48 divisors (see below), whose sum is σ = 3435602688. Its totient is φ = 290844160.

The previous prime is 1158833213. The next prime is 1158833231. The reversal of 1158833220 is 223388511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567036 + ... + 569075.

It is an arithmetic number, because the mean of its divisors is an integer number (71575056).

Almost surely, 2^1158833220 is an apocalyptic number.

1158833220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158833220 is an abundant number, since it is smaller than the sum of its proper divisors (2276769468).

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

1158833220 is a wasteful number, since it uses less digits than its factorization.

1158833220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136140 (or 1136138 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1158833220 is about 34041.6395022331. The cubic root of 1158833220 is about 1050.3651700382.

The spelling of 1158833220 in words is "one billion, one hundred fifty-eight million, eight hundred thirty-three thousand, two hundred twenty".