40122064420 has 12 divisors (see below), whose sum is σ = 84256335324. Its totient is φ = 16048825760.

The previous prime is 40122064397. The next prime is 40122064441. The reversal of 40122064420 is 2446022104.

It is a happy number.

40122064420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16744877604 + 23377186816 = 129402^2 + 152896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003051591 + ... + 1003051630.

It is an arithmetic number, because the mean of its divisors is an integer number (7021361277).

Almost surely, 2^40122064420 is an apocalyptic number.

It is an amenable number.

40122064420 is an abundant number, since it is smaller than the sum of its proper divisors (44134270904).

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

40122064420 is a wasteful number, since it uses less digits than its factorization.

40122064420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006103230 (or 2006103228 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40122064420 its reverse (2446022104), we get a palindrome (42568086524).

The spelling of 40122064420 in words is "forty billion, one hundred twenty-two million, sixty-four thousand, four hundred twenty".