1155442824 has 144 divisors (see below), whose sum is σ = 3316212900. Its totient is φ = 362998272.

The previous prime is 1155442811. The next prime is 1155442867. The reversal of 1155442824 is 4282445511.

It can be written as a sum of positive squares in 6 ways, for example, as 1098922500 + 56520324 = 33150^2 + 7518^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5865094 + ... + 5865290.

Almost surely, 2^1155442824 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 1155442824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658106450).

1155442824 is an abundant number, since it is smaller than the sum of its proper divisors (2160770076).

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

1155442824 is a wasteful number, since it uses less digits than its factorization.

1155442824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 284 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 1155442824 is about 33991.8052477358. The cubic root of 1155442824 is about 1049.3398190159.

The spelling of 1155442824 in words is "one billion, one hundred fifty-five million, four hundred forty-two thousand, eight hundred twenty-four".