8938391040 has 320 divisors, whose sum is σ = 32128747200. Its totient is φ = 2355167232.

The previous prime is 8938391029. The next prime is 8938391047. The reversal of 8938391040 is 401938398.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8938391047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6150954 + ... + 6152406.

It is an arithmetic number, because the mean of its divisors is an integer number (100402335).

Almost surely, 2^8938391040 is an apocalyptic number.

8938391040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8938391040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16064373600).

8938391040 is an abundant number, since it is smaller than the sum of its proper divisors (23190356160).

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

8938391040 is a wasteful number, since it uses less digits than its factorization.

8938391040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 8938391040 is about 94543.0644732865. The cubic root of 8938391040 is about 2075.3265883588.

The spelling of 8938391040 in words is "eight billion, nine hundred thirty-eight million, three hundred ninety-one thousand, forty".