1158828 has 24 divisors (see below), whose sum is σ = 2950080. Its totient is φ = 351120.

The previous prime is 1158827. The next prime is 1158841. The reversal of 1158828 is 8288511.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1158821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4258 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (122920).

2^1158828 is an apocalyptic number.

It is an amenable number.

1158828 is an abundant number, since it is smaller than the sum of its proper divisors (1791252).

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

1158828 is a wasteful number, since it uses less digits than its factorization.

1158828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8797 (or 8795 counting only the distinct ones).

The product of its digits is 5120, while the sum is 33.

The square root of 1158828 is about 1076.4887365876. The cubic root of 1158828 is about 105.0363592902.

The spelling of 1158828 in words is "one million, one hundred fifty-eight thousand, eight hundred twenty-eight".