40444431020 has 48 divisors (see below), whose sum is σ = 97078056768. Its totient is φ = 13865030400.

The previous prime is 40444431007. The next prime is 40444431067. The reversal of 40444431020 is 2013444404.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 2357594 + ... + 2374686.

It is an arithmetic number, because the mean of its divisors is an integer number (2022459516).

Almost surely, 2^40444431020 is an apocalyptic number.

It is an amenable number.

40444431020 is an abundant number, since it is smaller than the sum of its proper divisors (56633625748).

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

40444431020 is a wasteful number, since it uses less digits than its factorization.

40444431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34010 (or 34008 counting only the distinct ones).

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

Adding to 40444431020 its reverse (2013444404), we get a palindrome (42457875424).

The spelling of 40444431020 in words is "forty billion, four hundred forty-four million, four hundred thirty-one thousand, twenty".