5640239232 has 192 divisors, whose sum is σ = 16894963800. Its totient is φ = 1803927552.

The previous prime is 5640239201. The next prime is 5640239249. The reversal of 5640239232 is 2329320465.

It is a happy number.

5640239232 is a `hidden beast` number, since 5 + 640 + 2 + 3 + 9 + 2 + 3 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5425206336 + 215032896 = 73656^2 + 14664^2 .

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6580948 + ... + 6581804.

Almost surely, 2^5640239232 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 5640239232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8447481900).

5640239232 is an abundant number, since it is smaller than the sum of its proper divisors (11254724568).

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

5640239232 is a wasteful number, since it uses less digits than its factorization.

5640239232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 5640239232 is about 75101.5261629216. The cubic root of 5640239232 is about 1780.0512580450.

Adding to 5640239232 its reverse (2329320465), we get a palindrome (7969559697).

The spelling of 5640239232 in words is "five billion, six hundred forty million, two hundred thirty-nine thousand, two hundred thirty-two".