8522409390 has 32 divisors (see below), whose sum is σ = 22313218176. Its totient is φ = 2066038560.

The previous prime is 8522409353. The next prime is 8522409421. The reversal of 8522409390 is 939042258.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12912412 + ... + 12913071.

It is an arithmetic number, because the mean of its divisors is an integer number (697288068).

Almost surely, 2^8522409390 is an apocalyptic number.

8522409390 is an abundant number, since it is smaller than the sum of its proper divisors (13790808786).

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

8522409390 is a wasteful number, since it uses less digits than its factorization.

8522409390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825504.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 8522409390 is about 92316.8965574558. The cubic root of 8522409390 is about 2042.6194556064.

The spelling of 8522409390 in words is "eight billion, five hundred twenty-two million, four hundred nine thousand, three hundred ninety".