8445398076 has 72 divisors (see below), whose sum is σ = 22185072000. Its totient is φ = 2705984640.

The previous prime is 8445398069. The next prime is 8445398113. The reversal of 8445398076 is 6708935448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140890 + ... + 191678.

It is an arithmetic number, because the mean of its divisors is an integer number (308126000).

Almost surely, 2^8445398076 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 8445398076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11092536000).

8445398076 is an abundant number, since it is smaller than the sum of its proper divisors (13739673924).

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

8445398076 is a wasteful number, since it uses less digits than its factorization.

8445398076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50979 (or 50974 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 8445398076 is about 91898.8469786210. The cubic root of 8445398076 is about 2036.4482343944.

The spelling of 8445398076 in words is "eight billion, four hundred forty-five million, three hundred ninety-eight thousand, seventy-six".