1164443252 has 72 divisors (see below), whose sum is σ = 2420812800. Its totient is φ = 488569536.

The previous prime is 1164443227. The next prime is 1164443261. The reversal of 1164443252 is 2523444611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2430749 + ... + 2431227.

It is an arithmetic number, because the mean of its divisors is an integer number (33622400).

Almost surely, 2^1164443252 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 1164443252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210406400).

1164443252 is an abundant number, since it is smaller than the sum of its proper divisors (1256369548).

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

1164443252 is a wasteful number, since it uses less digits than its factorization.

1164443252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 724 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 1164443252 is about 34123.9395732673. The cubic root of 1164443252 is about 1052.0574178206.

Adding to 1164443252 its reverse (2523444611), we get a palindrome (3687887863).

The spelling of 1164443252 in words is "one billion, one hundred sixty-four million, four hundred forty-three thousand, two hundred fifty-two".