40004444433 has 16 divisors (see below), whose sum is σ = 55755887616. Its totient is φ = 25465379280.

The previous prime is 40004444401. The next prime is 40004444443. The reversal of 40004444433 is 33444440004.

It is not a de Polignac number, because 40004444433 - 2⁵ = 40004444401 is a prime.

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 40004444433.

It is not an unprimeable number, because it can be changed into a prime (40004444443) 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, 468285 + ... + 547082.

It is an arithmetic number, because the mean of its divisors is an integer number (3484742976).

Almost surely, 2^40004444433 is an apocalyptic number.

It is an amenable number.

40004444433 is a deficient number, since it is larger than the sum of its proper divisors (15751443183).

40004444433 is a wasteful number, since it uses less digits than its factorization.

40004444433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015964.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 40004444433 its reverse (33444440004), we get a palindrome (73448884437).

The spelling of 40004444433 in words is "forty billion, four million, four hundred forty-four thousand, four hundred thirty-three".