442220540453 has 16 divisors (see below), whose sum is σ = 467223153600. Its totient is φ = 417391574400.

The previous prime is 442220540353. The next prime is 442220540459. The reversal of 442220540453 is 354045022244.

It is not a de Polignac number, because 442220540453 - 2¹⁰ = 442220539429 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 (442220540459) 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, 22542113 + ... + 22561721.

It is an arithmetic number, because the mean of its divisors is an integer number (29201447100).

Almost surely, 2^442220540453 is an apocalyptic number.

It is an amenable number.

442220540453 is a deficient number, since it is larger than the sum of its proper divisors (25002613147).

442220540453 is a wasteful number, since it uses less digits than its factorization.

442220540453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 442220540453 its reverse (354045022244), we get a palindrome (796265562697).

The spelling of 442220540453 in words is "four hundred forty-two billion, two hundred twenty million, five hundred forty thousand, four hundred fifty-three".