8572421140 has 48 divisors (see below), whose sum is σ = 19189497600. Its totient is φ = 3207364992.

The previous prime is 8572421101. The next prime is 8572421147. The reversal of 8572421140 is 411242758.

It is a junction number, because it is equal to n+sod(n) for n = 8572421096 and 8572421105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572421147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112759 + ... + 172798.

It is an arithmetic number, because the mean of its divisors is an integer number (399781200).

Almost surely, 2^8572421140 is an apocalyptic number.

It is an amenable number.

8572421140 is an abundant number, since it is smaller than the sum of its proper divisors (10617076460).

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

8572421140 is a wasteful number, since it uses less digits than its factorization.

8572421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285664 (or 285662 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8572421140 is about 92587.3703050259. The cubic root of 8572421140 is about 2046.6072089003.

Adding to 8572421140 its reverse (411242758), we get a palindrome (8983663898).

The spelling of 8572421140 in words is "eight billion, five hundred seventy-two million, four hundred twenty-one thousand, one hundred forty".