8535232440 has 640 divisors, whose sum is σ = 35754048000. Its totient is φ = 1781885952.

The previous prime is 8535232429. The next prime is 8535232481. The reversal of 8535232440 is 442325358.

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

It is a junction number, because it is equal to n+sod(n) for n = 8535232395 and 8535232404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 12496339 + ... + 12497021.

It is an arithmetic number, because the mean of its divisors is an integer number (55865700).

Almost surely, 2^8535232440 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 8535232440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17877024000).

8535232440 is an abundant number, since it is smaller than the sum of its proper divisors (27218815560).

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

8535232440 is a wasteful number, since it uses less digits than its factorization.

8535232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 8535232440 is about 92386.3217148513. The cubic root of 8535232440 is about 2043.6434025708.

Adding to 8535232440 its reverse (442325358), we get a palindrome (8977557798).

The spelling of 8535232440 in words is "eight billion, five hundred thirty-five million, two hundred thirty-two thousand, four hundred forty".