40403443411 has 4 divisors (see below), whose sum is σ = 40406711800. Its totient is φ = 40400175024.

The previous prime is 40403443343. The next prime is 40403443417. The reversal of 40403443411 is 11434430404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40403443411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40403443411.

It is not an unprimeable number, because it can be changed into a prime (40403443417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1615581 + ... + 1640398.

It is an arithmetic number, because the mean of its divisors is an integer number (10101677950).

Almost surely, 2^40403443411 is an apocalyptic number.

40403443411 is a deficient number, since it is larger than the sum of its proper divisors (3268389).

40403443411 is a wasteful number, since it uses less digits than its factorization.

40403443411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268388.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40403443411 its reverse (11434430404), we get a palindrome (51837873815).

The spelling of 40403443411 in words is "forty billion, four hundred three million, four hundred forty-three thousand, four hundred eleven".