8440213506 has 16 divisors (see below), whose sum is σ = 17292145248. Its totient is φ = 2744784800.

The previous prime is 8440213501. The next prime is 8440213511. The reversal of 8440213506 is 6053120448.

It is an interprime number because it is at equal distance from previous prime (8440213501) and next prime (8440213511).

It is not an unprimeable number, because it can be changed into a prime (8440213501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17154660 + ... + 17155151.

It is an arithmetic number, because the mean of its divisors is an integer number (1080759078).

Almost surely, 2^8440213506 is an apocalyptic number.

8440213506 is an abundant number, since it is smaller than the sum of its proper divisors (8851931742).

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

8440213506 is a wasteful number, since it uses less digits than its factorization.

8440213506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34309857.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 8440213506 is about 91870.6346228217. The cubic root of 8440213506 is about 2036.0314287140.

The spelling of 8440213506 in words is "eight billion, four hundred forty million, two hundred thirteen thousand, five hundred six".