40113230320 has 80 divisors (see below), whose sum is σ = 95943011040. Its totient is φ = 15585702912.

The previous prime is 40113230291. The next prime is 40113230327. The reversal of 40113230320 is 2303231104.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113230327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821294 + ... + 1843186.

It is an arithmetic number, because the mean of its divisors is an integer number (1199287638).

Almost surely, 2^40113230320 is an apocalyptic number.

40113230320 is a gapful number since it is divisible by the number (40) 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 40113230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47971505520).

40113230320 is an abundant number, since it is smaller than the sum of its proper divisors (55829780720).

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

40113230320 is a wasteful number, since it uses less digits than its factorization.

40113230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22562 (or 22556 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 40113230320 its reverse (2303231104), we get a palindrome (42416461424).

The spelling of 40113230320 in words is "forty billion, one hundred thirteen million, two hundred thirty thousand, three hundred twenty".