40444032434 has 32 divisors (see below), whose sum is σ = 68786444160. Its totient is φ = 17680118400.

The previous prime is 40444032401. The next prime is 40444032443. The reversal of 40444032434 is 43423044404.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40444032434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4283699 + ... + 4293129.

It is an arithmetic number, because the mean of its divisors is an integer number (2149576380).

Almost surely, 2^40444032434 is an apocalyptic number.

40444032434 is a deficient number, since it is larger than the sum of its proper divisors (28342411726).

40444032434 is a wasteful number, since it uses less digits than its factorization.

40444032434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18146.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 40444032434 its reverse (43423044404), we get a palindrome (83867076838).

The spelling of 40444032434 in words is "forty billion, four hundred forty-four million, thirty-two thousand, four hundred thirty-four".