40442034322021 has 16 divisors (see below), whose sum is σ = 43111481285376. Its totient is φ = 37805719207936.

The previous prime is 40442034322003. The next prime is 40442034322033. The reversal of 40442034322021 is 12022343024404.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40442034322021 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 (40442034322721) 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, 11821981 + ... + 14854066.

It is an arithmetic number, because the mean of its divisors is an integer number (2694467580336).

Almost surely, 2^{40442034322021} is an apocalyptic number.

It is an amenable number.

40442034322021 is a deficient number, since it is larger than the sum of its proper divisors (2669446963355).

40442034322021 is a wasteful number, since it uses less digits than its factorization.

40442034322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26676668.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 40442034322021 its reverse (12022343024404), we get a palindrome (52464377346425).

The spelling of 40442034322021 in words is "forty trillion, four hundred forty-two billion, thirty-four million, three hundred twenty-two thousand, twenty-one".