1145532344 has 64 divisors (see below), whose sum is σ = 2473200000. Its totient is φ = 491944320.

The previous prime is 1145532343. The next prime is 1145532347. The reversal of 1145532344 is 4432355411.

It is a self number, because there is not a number n which added to its sum of digits gives 1145532344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145532343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833642 + ... + 835014.

It is an arithmetic number, because the mean of its divisors is an integer number (38643750).

Almost surely, 2^1145532344 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 1145532344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236600000).

1145532344 is an abundant number, since it is smaller than the sum of its proper divisors (1327667656).

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

1145532344 is a wasteful number, since it uses less digits than its factorization.

1145532344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1904 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1145532344 is about 33845.7138202166. The cubic root of 1145532344 is about 1046.3310630166.

Adding to 1145532344 its reverse (4432355411), we get a palindrome (5577887755).

The spelling of 1145532344 in words is "one billion, one hundred forty-five million, five hundred thirty-two thousand, three hundred forty-four".