8421058740 has 24 divisors (see below), whose sum is σ = 23578964640. Its totient is φ = 2245615648.

The previous prime is 8421058729. The next prime is 8421058781. The reversal of 8421058740 is 478501248.

It is a happy number.

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, 70175430 + ... + 70175549.

It is an arithmetic number, because the mean of its divisors is an integer number (982456860).

Almost surely, 2^8421058740 is an apocalyptic number.

It is an amenable number.

8421058740 is an abundant number, since it is smaller than the sum of its proper divisors (15157905900).

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

8421058740 is a wasteful number, since it uses less digits than its factorization.

8421058740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140350991 (or 140350989 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 8421058740 is about 91766.3268307063. The cubic root of 8421058740 is about 2034.4900283047.

Adding to 8421058740 its reverse (478501248), we get a palindrome (8899559988).

The spelling of 8421058740 in words is "eight billion, four hundred twenty-one million, fifty-eight thousand, seven hundred forty".