8440513368 has 64 divisors (see below), whose sum is σ = 24174912000. Its totient is φ = 2405659392.

The previous prime is 8440513351. The next prime is 8440513397. The reversal of 8440513368 is 8633150448.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7293 + ... + 130131.

It is an arithmetic number, because the mean of its divisors is an integer number (377733000).

Almost surely, 2^8440513368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8440513368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12087456000).

8440513368 is an abundant number, since it is smaller than the sum of its proper divisors (15734398632).

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

8440513368 is a wasteful number, since it uses less digits than its factorization.

8440513368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123264 (or 123260 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 8440513368 is about 91872.2665879100. The cubic root of 8440513368 is about 2036.0555403167.

The spelling of 8440513368 in words is "eight billion, four hundred forty million, five hundred thirteen thousand, three hundred sixty-eight".