8399354440 has 32 divisors (see below), whose sum is σ = 18914575680. Its totient is φ = 3356892352.

The previous prime is 8399354393. The next prime is 8399354473. The reversal of 8399354440 is 444539938.

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, 40972 + ... + 135931.

It is an arithmetic number, because the mean of its divisors is an integer number (591080490).

Almost surely, 2^8399354440 is an apocalyptic number.

It is an amenable number.

8399354440 is an abundant number, since it is smaller than the sum of its proper divisors (10515221240).

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

8399354440 is a wasteful number, since it uses less digits than its factorization.

8399354440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178101 (or 178097 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The square root of 8399354440 is about 91647.9920129186. The cubic root of 8399354440 is about 2032.7406373089.

The spelling of 8399354440 in words is "eight billion, three hundred ninety-nine million, three hundred fifty-four thousand, four hundred forty".