40343205042 has 24 divisors (see below), whose sum is σ = 99897460416. Its totient is φ = 11526629976.

The previous prime is 40343205011. The next prime is 40343205043. The reversal of 40343205042 is 24050234304.

It is a junction number, because it is equal to n+sod(n) for n = 40343204997 and 40343205015.

It is not an unprimeable number, because it can be changed into a prime (40343205043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160091958 + ... + 160092209.

It is an arithmetic number, because the mean of its divisors is an integer number (4162394184).

Almost surely, 2^40343205042 is an apocalyptic number.

40343205042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40343205042 is an abundant number, since it is smaller than the sum of its proper divisors (59554255374).

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

40343205042 is a wasteful number, since it uses less digits than its factorization.

40343205042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320184182 (or 320184179 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 40343205042 its reverse (24050234304), we get a palindrome (64393439346).

The spelling of 40343205042 in words is "forty billion, three hundred forty-three million, two hundred five thousand, forty-two".