32001444040 has 16 divisors (see below), whose sum is σ = 72003249180. Its totient is φ = 12800577600.

The previous prime is 32001444037. The next prime is 32001444049. The reversal of 32001444040 is 4044410023.

It can be written as a sum of positive squares in 2 ways, for example, as 31130367844 + 871076196 = 176438^2 + 29514^2 .

It is not an unprimeable number, because it can be changed into a prime (32001444049) 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 3 ways as a sum of consecutive naturals, for example, 400018011 + ... + 400018090.

Almost surely, 2^32001444040 is an apocalyptic number.

It is an amenable number.

32001444040 is an abundant number, since it is smaller than the sum of its proper divisors (40001805140).

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

32001444040 is a wasteful number, since it uses less digits than its factorization.

32001444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800036112 (or 800036108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 32001444040 its reverse (4044410023), we get a palindrome (36045854063).

The spelling of 32001444040 in words is "thirty-two billion, one million, four hundred forty-four thousand, forty".