40231204443 has 16 divisors (see below), whose sum is σ = 59606668800. Its totient is φ = 26818605000.

The previous prime is 40231204441. The next prime is 40231204549. The reversal of 40231204443 is 34440213204.

It is a happy number.

It is not a de Polignac number, because 40231204443 - 2¹ = 40231204441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40231204441) 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, 317098 + ... + 425456.

It is an arithmetic number, because the mean of its divisors is an integer number (3725416800).

Almost surely, 2^40231204443 is an apocalyptic number.

40231204443 is a deficient number, since it is larger than the sum of its proper divisors (19375464357).

40231204443 is a wasteful number, since it uses less digits than its factorization.

40231204443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122119 (or 122113 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40231204443 its reverse (34440213204), we get a palindrome (74671417647).

The spelling of 40231204443 in words is "forty billion, two hundred thirty-one million, two hundred four thousand, four hundred forty-three".