40204232320 has 128 divisors (see below), whose sum is σ = 113387443200. Its totient is φ = 13339607040.

The previous prime is 40204232317. The next prime is 40204232329. The reversal of 40204232320 is 2323240204.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 40204232291 and 40204232300.

It is not an unprimeable number, because it can be changed into a prime (40204232329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5865 + ... + 283624.

It is an arithmetic number, because the mean of its divisors is an integer number (885839400).

Almost surely, 2^40204232320 is an apocalyptic number.

40204232320 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 40204232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56693721600).

40204232320 is an abundant number, since it is smaller than the sum of its proper divisors (73183210880).

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

40204232320 is a wasteful number, since it uses less digits than its factorization.

40204232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289546 (or 289534 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 40204232320 its reverse (2323240204), we get a palindrome (42527472524).

The spelling of 40204232320 in words is "forty billion, two hundred four million, two hundred thirty-two thousand, three hundred twenty".