5287421040 has 320 divisors, whose sum is σ = 18705088512. Its totient is φ = 1224115200.

The previous prime is 5287421017. The next prime is 5287421057. The reversal of 5287421040 is 401247825.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 5287420992 and 5287421010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5334945 + ... + 5335935.

Almost surely, 2^5287421040 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 5287421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9352544256).

5287421040 is an abundant number, since it is smaller than the sum of its proper divisors (13417667472).

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

5287421040 is a wasteful number, since it uses less digits than its factorization.

5287421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 5287421040 is about 72714.6549190739. The cubic root of 5287421040 is about 1742.1329635938.

Adding to 5287421040 its reverse (401247825), we get a palindrome (5688668865).

The spelling of 5287421040 in words is "five billion, two hundred eighty-seven million, four hundred twenty-one thousand, forty".