40013332444 has 6 divisors (see below), whose sum is σ = 70023331784. Its totient is φ = 20006666220.

The previous prime is 40013332427. The next prime is 40013332451. The reversal of 40013332444 is 44423331004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001666552 + ... + 5001666559.

Almost surely, 2^40013332444 is an apocalyptic number.

It is an amenable number.

40013332444 is a deficient number, since it is larger than the sum of its proper divisors (30009999340).

40013332444 is a wasteful number, since it uses less digits than its factorization.

40013332444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003333115 (or 10003333113 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 40013332444 its reverse (44423331004), we get a palindrome (84436663448).

The spelling of 40013332444 in words is "forty billion, thirteen million, three hundred thirty-two thousand, four hundred forty-four".