40120244412 has 12 divisors (see below), whose sum is σ = 93613903656. Its totient is φ = 13373414800.

The previous prime is 40120244401. The next prime is 40120244413. The reversal of 40120244412 is 21444202104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120244413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1671676839 + ... + 1671676862.

It is an arithmetic number, because the mean of its divisors is an integer number (7801158638).

Almost surely, 2^40120244412 is an apocalyptic number.

It is an amenable number.

40120244412 is an abundant number, since it is smaller than the sum of its proper divisors (53493659244).

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

40120244412 is a wasteful number, since it uses less digits than its factorization.

40120244412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343353708 (or 3343353706 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 40120244412 its reverse (21444202104), we get a palindrome (61564446516).

The spelling of 40120244412 in words is "forty billion, one hundred twenty million, two hundred forty-four thousand, four hundred twelve".