5236432640 has 72 divisors (see below), whose sum is σ = 12596109120. Its totient is φ = 2085687296.

The previous prime is 5236432601. The next prime is 5236432651. The reversal of 5236432640 is 462346325.

It is a self number, because there is not a number n which added to its sum of digits gives 5236432640.

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, 297362 + ... + 314478.

It is an arithmetic number, because the mean of its divisors is an integer number (174945960).

Almost surely, 2^5236432640 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 5236432640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6298054560).

5236432640 is an abundant number, since it is smaller than the sum of its proper divisors (7359676480).

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

5236432640 is a wasteful number, since it uses less digits than its factorization.

5236432640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17377 (or 17363 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 5236432640 is about 72363.1994870321. The cubic root of 5236432640 is about 1736.5148720218.

Adding to 5236432640 its reverse (462346325), we get a palindrome (5698778965).

The spelling of 5236432640 in words is "five billion, two hundred thirty-six million, four hundred thirty-two thousand, six hundred forty".