8438046520 has 64 divisors (see below), whose sum is σ = 19445580000. Its totient is φ = 3293595648.

The previous prime is 8438046517. The next prime is 8438046557. The reversal of 8438046520 is 256408348.

It is a super-2 number, since 2×8438046520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 2765956 + ... + 2769004.

Almost surely, 2^8438046520 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 8438046520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9722790000).

8438046520 is an abundant number, since it is smaller than the sum of its proper divisors (11007533480).

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

8438046520 is a wasteful number, since it uses less digits than its factorization.

8438046520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712 (or 4708 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 8438046520 is about 91858.8401842740. The cubic root of 8438046520 is about 2035.8571665643.

The spelling of 8438046520 in words is "eight billion, four hundred thirty-eight million, forty-six thousand, five hundred twenty".