1140545344 has 56 divisors (see below), whose sum is σ = 2380658688. Its totient is φ = 541094400.

The previous prime is 1140545333. The next prime is 1140545347. The reversal of 1140545344 is 4435450411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140545347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183894 + ... + 189994.

Almost surely, 2^1140545344 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 1140545344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190329344).

1140545344 is an abundant number, since it is smaller than the sum of its proper divisors (1240113344).

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

1140545344 is a wasteful number, since it uses less digits than its factorization.

1140545344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263 (or 6253 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1140545344 is about 33771.9609143443. The cubic root of 1140545344 is about 1044.8104763780.

Adding to 1140545344 its reverse (4435450411), we get a palindrome (5575995755).

The spelling of 1140545344 in words is "one billion, one hundred forty million, five hundred forty-five thousand, three hundred forty-four".