40342223420 has 24 divisors (see below), whose sum is σ = 85148721504. Its totient is φ = 16054974656.

The previous prime is 40342223417. The next prime is 40342223497. The reversal of 40342223420 is 2432224304.

It is a happy number.

40342223420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40342223420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115632 + ... + 5123511.

It is an arithmetic number, because the mean of its divisors is an integer number (3547863396).

Almost surely, 2^40342223420 is an apocalyptic number.

It is an amenable number.

40342223420 is an abundant number, since it is smaller than the sum of its proper divisors (44806498084).

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

40342223420 is a wasteful number, since it uses less digits than its factorization.

40342223420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239349 (or 10239347 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 40342223420 its reverse (2432224304), we get a palindrome (42774447724).

The spelling of 40342223420 in words is "forty billion, three hundred forty-two million, two hundred twenty-three thousand, four hundred twenty".