8226439990 has 32 divisors (see below), whose sum is σ = 14983885440. Its totient is φ = 3251449344.

The previous prime is 8226439987. The next prime is 8226440011. The reversal of 8226439990 is 999346228.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412867 + ... + 2416273.

It is an arithmetic number, because the mean of its divisors is an integer number (468246420).

Almost surely, 2^8226439990 is an apocalyptic number.

8226439990 is a deficient number, since it is larger than the sum of its proper divisors (6757445450).

8226439990 is a wasteful number, since it uses less digits than its factorization.

8226439990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 8226439990 is about 90699.7243104961. The cubic root of 8226439990 is about 2018.6947086302.

The spelling of 8226439990 in words is "eight billion, two hundred twenty-six million, four hundred thirty-nine thousand, nine hundred ninety".