40442012011 has 16 divisors (see below), whose sum is σ = 43082458848. Its totient is φ = 37831219200.

The previous prime is 40442011999. The next prime is 40442012033. The reversal of 40442012011 is 11021024404.

It is a cyclic number.

It is not a de Polignac number, because 40442012011 - 2²¹ = 40439914859 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 40442012011.

It is not an unprimeable number, because it can be changed into a prime (40442012071) 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, 2252791 + ... + 2270671.

It is an arithmetic number, because the mean of its divisors is an integer number (2692653678).

Almost surely, 2^40442012011 is an apocalyptic number.

40442012011 is a deficient number, since it is larger than the sum of its proper divisors (2640446837).

40442012011 is a wasteful number, since it uses less digits than its factorization.

40442012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18702.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 40442012011 its reverse (11021024404), we get a palindrome (51463036415).

The spelling of 40442012011 in words is "forty billion, four hundred forty-two million, twelve thousand, eleven".