40444111444 has 24 divisors (see below), whose sum is σ = 80568508608. Its totient is φ = 17584395840.

The previous prime is 40444111403. The next prime is 40444111537. The reversal of 40444111444 is 44411144404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19981257 + ... + 19983280.

It is an arithmetic number, because the mean of its divisors is an integer number (3357021192).

Almost surely, 2^40444111444 is an apocalyptic number.

40444111444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40444111444 is a deficient number, since it is larger than the sum of its proper divisors (40124397164).

40444111444 is a wasteful number, since it uses less digits than its factorization.

40444111444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39964575 (or 39964573 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 40444111444 its reverse (44411144404), we get a palindrome (84855255848).

The spelling of 40444111444 in words is "forty billion, four hundred forty-four million, one hundred eleven thousand, four hundred forty-four".