1156828 has 12 divisors (see below), whose sum is σ = 2040192. Its totient is φ = 573920.

The previous prime is 1156823. The next prime is 1156847. The reversal of 1156828 is 8286511.

It is a self number, because there is not a number n which added to its sum of digits gives 1156828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156823) 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 3 ways as a sum of consecutive naturals, for example, 508 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (170016).

2^1156828 is an apocalyptic number.

It is an amenable number.

1156828 is a deficient number, since it is larger than the sum of its proper divisors (883364).

1156828 is a wasteful number, since it uses less digits than its factorization.

1156828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252 (or 2250 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 1156828 is about 1075.5593893412. The cubic root of 1156828 is about 104.9758977180.

The spelling of 1156828 in words is "one million, one hundred fifty-six thousand, eight hundred twenty-eight".