40144444044 has 24 divisors (see below), whose sum is σ = 98600389440. Its totient is φ = 12677192784.

The previous prime is 40144444037. The next prime is 40144444049. The reversal of 40144444044 is 44044444104.

It is a happy number.

It is a super-2 number, since 2×40144444044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40144443996 and 40144444014.

It is not an unprimeable number, because it can be changed into a prime (40144444049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88035834 + ... + 88036289.

It is an arithmetic number, because the mean of its divisors is an integer number (4108349560).

Almost surely, 2^40144444044 is an apocalyptic number.

It is an amenable number.

40144444044 is an abundant number, since it is smaller than the sum of its proper divisors (58455945396).

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

40144444044 is a wasteful number, since it uses less digits than its factorization.

40144444044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176072149 (or 176072147 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 40144444044 its reverse (44044444104), we get a palindrome (84188888148).

The spelling of 40144444044 in words is "forty billion, one hundred forty-four million, four hundred forty-four thousand, forty-four".