40464302442221 has 4 divisors (see below), whose sum is σ = 46244917076832. Its totient is φ = 34683687807612.

The previous prime is 40464302442163. The next prime is 40464302442227. The reversal of 40464302442221 is 12224420346404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40464302442221 - 2¹⁴ = 40464302425837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40464302442227) 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, 2890307317295 + ... + 2890307317308.

It is an arithmetic number, because the mean of its divisors is an integer number (11561229269208).

Almost surely, 2^{40464302442221} is an apocalyptic number.

It is an amenable number.

40464302442221 is a deficient number, since it is larger than the sum of its proper divisors (5780614634611).

40464302442221 is an equidigital number, since it uses as much as digits as its factorization.

40464302442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780614634610.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 40464302442221 its reverse (12224420346404), we get a palindrome (52688722788625).

The spelling of 40464302442221 in words is "forty trillion, four hundred sixty-four billion, three hundred two million, four hundred forty-two thousand, two hundred twenty-one".