40231144444 has 12 divisors (see below), whose sum is σ = 70685000568. Its totient is φ = 20035430000.

The previous prime is 40231144417. The next prime is 40231144477. The reversal of 40231144444 is 44444113204.

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 in 3 ways as a sum of consecutive naturals, for example, 20034427 + ... + 20036434.

It is an arithmetic number, because the mean of its divisors is an integer number (5890416714).

Almost surely, 2^40231144444 is an apocalyptic number.

It is an amenable number.

40231144444 is a deficient number, since it is larger than the sum of its proper divisors (30453856124).

40231144444 is a wasteful number, since it uses less digits than its factorization.

40231144444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40071116 (or 40071114 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 40231144444 its reverse (44444113204), we get a palindrome (84675257648).

The spelling of 40231144444 in words is "forty billion, two hundred thirty-one million, one hundred forty-four thousand, four hundred forty-four".