40444413020 has 96 divisors (see below), whose sum is σ = 98045531136. Its totient is φ = 13869363200.

The previous prime is 40444413007. The next prime is 40444413041. The reversal of 40444413020 is 2031444404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 302972 + ... + 415548.

It is an arithmetic number, because the mean of its divisors is an integer number (1021307616).

Almost surely, 2^40444413020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40444413020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49022765568).

40444413020 is an abundant number, since it is smaller than the sum of its proper divisors (57601118116).

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

40444413020 is a wasteful number, since it uses less digits than its factorization.

40444413020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112691 (or 112689 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40444413020 its reverse (2031444404), we get a palindrome (42475857424).

The spelling of 40444413020 in words is "forty billion, four hundred forty-four million, four hundred thirteen thousand, twenty".