40444201983 has 16 divisors (see below), whose sum is σ = 54043877216. Its totient is φ = 26903715840.

The previous prime is 40444201979. The next prime is 40444201997. The reversal of 40444201983 is 38910244404.

It is not a de Polignac number, because 40444201983 - 2² = 40444201979 is a prime.

It is a super-2 number, since 2×40444201983² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444208983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3968991 + ... + 3979167.

It is an arithmetic number, because the mean of its divisors is an integer number (3377742326).

Almost surely, 2^40444201983 is an apocalyptic number.

40444201983 is a deficient number, since it is larger than the sum of its proper divisors (13599675233).

40444201983 is a wasteful number, since it uses less digits than its factorization.

40444201983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12954.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 40444201983 in words is "forty billion, four hundred forty-four million, two hundred one thousand, nine hundred eighty-three".