40101012444 has 12 divisors (see below), whose sum is σ = 93569029064. Its totient is φ = 13367004144.

The previous prime is 40101012437. The next prime is 40101012449. The reversal of 40101012444 is 44421010104.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40101012444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40101012449) 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, 1670875507 + ... + 1670875530.

Almost surely, 2^40101012444 is an apocalyptic number.

It is an amenable number.

40101012444 is an abundant number, since it is smaller than the sum of its proper divisors (53468016620).

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

40101012444 is a wasteful number, since it uses less digits than its factorization.

40101012444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341751044 (or 3341751042 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 40101012444 its reverse (44421010104), we get a palindrome (84522022548).

The spelling of 40101012444 in words is "forty billion, one hundred one million, twelve thousand, four hundred forty-four".