40020400022 has 16 divisors (see below), whose sum is σ = 60127773552. Its totient is φ = 19977834240.

The previous prime is 40020399983. The next prime is 40020400051. The reversal of 40020400022 is 22000402004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198622 + ... + 4208142.

It is an arithmetic number, because the mean of its divisors is an integer number (3757985847).

Almost surely, 2^40020400022 is an apocalyptic number.

40020400022 is a deficient number, since it is larger than the sum of its proper divisors (20107373530).

40020400022 is a wasteful number, since it uses less digits than its factorization.

40020400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 40020400022 its reverse (22000402004), we get a palindrome (62020802026).

The spelling of 40020400022 in words is "forty billion, twenty million, four hundred thousand, twenty-two".