442241113421391 has 16 divisors (see below), whose sum is σ = 606973992688224. Its totient is φ = 286282518073344.

The previous prime is 442241113421383. The next prime is 442241113421441. The reversal of 442241113421391 is 193124311142244.

It is not a de Polignac number, because 442241113421391 - 2³ = 442241113421383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442241113421381) 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, 14337049786 + ... + 14337080631.

It is an arithmetic number, because the mean of its divisors is an integer number (37935874543014).

Almost surely, 2^{442241113421391} is an apocalyptic number.

442241113421391 is a deficient number, since it is larger than the sum of its proper divisors (164732879266833).

442241113421391 is a wasteful number, since it uses less digits than its factorization.

442241113421391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28674130570.

The product of its digits is 165888, while the sum is 42.

The spelling of 442241113421391 in words is "four hundred forty-two trillion, two hundred forty-one billion, one hundred thirteen million, four hundred twenty-one thousand, three hundred ninety-one".