40444521003 has 24 divisors (see below), whose sum is σ = 58890191360. Its totient is φ = 26746271280.

The previous prime is 40444520983. The next prime is 40444521083. The reversal of 40444521003 is 30012544404.

It is a happy number.

40444521003 is a `hidden beast` number, since 4 + 0 + 4 + 445 + 210 + 0 + 3 = 666.

It is not a de Polignac number, because 40444521003 - 2¹⁸ = 40444258859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40444521083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1526850 + ... + 1553112.

Almost surely, 2^40444521003 is an apocalyptic number.

40444521003 is a deficient number, since it is larger than the sum of its proper divisors (18445670357).

40444521003 is a wasteful number, since it uses less digits than its factorization.

40444521003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27639 (or 27636 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The spelling of 40444521003 in words is "forty billion, four hundred forty-four million, five hundred twenty-one thousand, three".