40203242320 has 40 divisors (see below), whose sum is σ = 93683619936. Its totient is φ = 16044981888.

The previous prime is 40203242297. The next prime is 40203242327. The reversal of 40203242320 is 2324230204.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 40203242291 and 40203242300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203242327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531762 + ... + 602641.

Almost surely, 2^40203242320 is an apocalyptic number.

40203242320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40203242320 is an abundant number, since it is smaller than the sum of its proper divisors (53480377616).

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

40203242320 is a wasteful number, since it uses less digits than its factorization.

40203242320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134859 (or 1134853 counting only the distinct ones).

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

Adding to 40203242320 its reverse (2324230204), we get a palindrome (42527472524).

The spelling of 40203242320 in words is "forty billion, two hundred three million, two hundred forty-two thousand, three hundred twenty".