40444321032 has 32 divisors (see below), whose sum is σ = 112345336800. Its totient is φ = 13481440272.

The previous prime is 40444321031. The next prime is 40444321039. The reversal of 40444321032 is 23012344404.

It is a happy number.

40444321032 is a `hidden beast` number, since 4 + 0 + 4 + 443 + 210 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40444320987 and 40444321005.

It is not an unprimeable number, because it can be changed into a prime (40444321031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93620898 + ... + 93621329.

It is an arithmetic number, because the mean of its divisors is an integer number (3510791775).

Almost surely, 2^40444321032 is an apocalyptic number.

It is an amenable number.

40444321032 is an abundant number, since it is smaller than the sum of its proper divisors (71901015768).

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

40444321032 is a wasteful number, since it uses less digits than its factorization.

40444321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187242242 (or 187242232 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40444321032 its reverse (23012344404), we get a palindrome (63456665436).

The spelling of 40444321032 in words is "forty billion, four hundred forty-four million, three hundred twenty-one thousand, thirty-two".