40442400044 has 6 divisors (see below), whose sum is σ = 70774200084. Its totient is φ = 20221200020.

The previous prime is 40442400007. The next prime is 40442400077. The reversal of 40442400044 is 44000424404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40442399986 and 40442400022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055300002 + ... + 5055300009.

It is an arithmetic number, because the mean of its divisors is an integer number (11795700014).

Almost surely, 2^40442400044 is an apocalyptic number.

It is an amenable number.

40442400044 is a deficient number, since it is larger than the sum of its proper divisors (30331800040).

40442400044 is a wasteful number, since it uses less digits than its factorization.

40442400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110600015 (or 10110600013 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40442400044 its reverse (44000424404), we get a palindrome (84442824448).

The spelling of 40442400044 in words is "forty billion, four hundred forty-two million, four hundred thousand, forty-four".