8399020390 has 8 divisors (see below), whose sum is σ = 15118236720. Its totient is φ = 3359608152.

The previous prime is 8399020363. The next prime is 8399020453. The reversal of 8399020390 is 930209938.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419951010 + ... + 419951029.

It is an arithmetic number, because the mean of its divisors is an integer number (1889779590).

Almost surely, 2^8399020390 is an apocalyptic number.

8399020390 is a deficient number, since it is larger than the sum of its proper divisors (6719216330).

8399020390 is a wasteful number, since it uses less digits than its factorization.

8399020390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839902046.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 8399020390 is about 91646.1695326106. The cubic root of 8399020390 is about 2032.7136889676.

The spelling of 8399020390 in words is "eight billion, three hundred ninety-nine million, twenty thousand, three hundred ninety".