40402224420 has 24 divisors (see below), whose sum is σ = 113126228544. Its totient is φ = 10773926496.

The previous prime is 40402224389. The next prime is 40402224433. The reversal of 40402224420 is 2442220404.

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, 336685144 + ... + 336685263.

It is an arithmetic number, because the mean of its divisors is an integer number (4713592856).

Almost surely, 2^40402224420 is an apocalyptic number.

It is an amenable number.

40402224420 is an abundant number, since it is smaller than the sum of its proper divisors (72724004124).

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

40402224420 is a wasteful number, since it uses less digits than its factorization.

40402224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673370419 (or 673370417 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40402224420 its reverse (2442220404), we get a palindrome (42844444824).

The spelling of 40402224420 in words is "forty billion, four hundred two million, two hundred twenty-four thousand, four hundred twenty".