8421260620 has 24 divisors (see below), whose sum is σ = 17687084688. Its totient is φ = 3368040000.

The previous prime is 8421260597. The next prime is 8421260621. The reversal of 8421260620 is 260621248.

It is not an unprimeable number, because it can be changed into a prime (8421260621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145255 + ... + 194785.

It is an arithmetic number, because the mean of its divisors is an integer number (736961862).

Almost surely, 2^8421260620 is an apocalyptic number.

It is an amenable number.

8421260620 is an abundant number, since it is smaller than the sum of its proper divisors (9265824068).

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

8421260620 is a wasteful number, since it uses less digits than its factorization.

8421260620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58041 (or 58039 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8421260620 is about 91767.4267918634. The cubic root of 8421260620 is about 2034.5062859423.

Adding to 8421260620 its reverse (260621248), we get a palindrome (8681881868).

The spelling of 8421260620 in words is "eight billion, four hundred twenty-one million, two hundred sixty thousand, six hundred twenty".