40013224420 has 48 divisors (see below), whose sum is σ = 95254165440. Its totient is φ = 13996526976.

The previous prime is 40013224409. The next prime is 40013224451. The reversal of 40013224420 is 2442231004.

It is a happy number.

40013224420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40013224391 and 40013224400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4044982 + ... + 4054861.

It is an arithmetic number, because the mean of its divisors is an integer number (1984461780).

Almost surely, 2^40013224420 is an apocalyptic number.

It is an amenable number.

40013224420 is an abundant number, since it is smaller than the sum of its proper divisors (55240941020).

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

40013224420 is a wasteful number, since it uses less digits than its factorization.

40013224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099884 (or 8099882 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40013224420 its reverse (2442231004), we get a palindrome (42455455424).

The spelling of 40013224420 in words is "forty billion, thirteen million, two hundred twenty-four thousand, four hundred twenty".