40044434434 has 8 divisors (see below), whose sum is σ = 60074190540. Its totient is φ = 20019704256.

The previous prime is 40044434413. The next prime is 40044434453. The reversal of 40044434434 is 43443444004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36132307225 + 3912127209 = 190085^2 + 62547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40044434434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236499 + ... + 1268470.

Almost surely, 2^40044434434 is an apocalyptic number.

40044434434 is a deficient number, since it is larger than the sum of its proper divisors (20029756106).

40044434434 is a wasteful number, since it uses less digits than its factorization.

40044434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512964.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 40044434434 its reverse (43443444004), we get a palindrome (83487878438).

The spelling of 40044434434 in words is "forty billion, forty-four million, four hundred thirty-four thousand, four hundred thirty-four".