5243631440 has 40 divisors (see below), whose sum is σ = 12226045608. Its totient is φ = 2091499520.

The previous prime is 5243631397. The next prime is 5243631467. The reversal of 5243631440 is 441363425.

It can be written as a sum of positive squares in 4 ways, for example, as 775511104 + 4468120336 = 27848^2 + 66844^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 5243631397 and 5243631406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64601 + ... + 121080.

Almost surely, 2^5243631440 is an apocalyptic number.

It is an amenable number.

5243631440 is an abundant number, since it is smaller than the sum of its proper divisors (6982414168).

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

5243631440 is a wasteful number, since it uses less digits than its factorization.

5243631440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186047 (or 186041 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 5243631440 is about 72412.9231560224. The cubic root of 5243631440 is about 1737.3102671555.

Adding to 5243631440 its reverse (441363425), we get a palindrome (5684994865).

The spelling of 5243631440 in words is "five billion, two hundred forty-three million, six hundred thirty-one thousand, four hundred forty".