8429940848 has 80 divisors (see below), whose sum is σ = 19343047680. Its totient is φ = 3483986688.

The previous prime is 8429940839. The next prime is 8429940853. The reversal of 8429940848 is 8480499248.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 8429940793 and 8429940802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369386 + ... + 391542.

It is an arithmetic number, because the mean of its divisors is an integer number (241788096).

Almost surely, 2^8429940848 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 8429940848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9671523840).

8429940848 is an abundant number, since it is smaller than the sum of its proper divisors (10913106832).

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

8429940848 is a wasteful number, since it uses less digits than its factorization.

8429940848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22294 (or 22288 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The square root of 8429940848 is about 91814.7093226352. The cubic root of 8429940848 is about 2035.2050694545.

The spelling of 8429940848 in words is "eight billion, four hundred twenty-nine million, nine hundred forty thousand, eight hundred forty-eight".