40004403311 has 4 divisors (see below), whose sum is σ = 40069031400. Its totient is φ = 39939775224.

The previous prime is 40004403259. The next prime is 40004403317. The reversal of 40004403311 is 11330440004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40004403311 - 2¹⁰ = 40004402287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004403317) 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, 32313116 + ... + 32314353.

It is an arithmetic number, because the mean of its divisors is an integer number (10017257850).

Almost surely, 2^40004403311 is an apocalyptic number.

40004403311 is a deficient number, since it is larger than the sum of its proper divisors (64628089).

40004403311 is an equidigital number, since it uses as much as digits as its factorization.

40004403311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64628088.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40004403311 its reverse (11330440004), we get a palindrome (51334843315).

The spelling of 40004403311 in words is "forty billion, four million, four hundred three thousand, three hundred eleven".