442306414391 has 2 divisors, whose sum is σ = 442306414392. Its totient is φ = 442306414390.

The previous prime is 442306414327. The next prime is 442306414397. The reversal of 442306414391 is 193414603244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442306414391 - 2⁶ = 442306414327 is a prime.

It is a super-2 number, since 2×442306414391² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442306414397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221153207195 + 221153207196.

It is an arithmetic number, because the mean of its divisors is an integer number (221153207196).

Almost surely, 2^442306414391 is an apocalyptic number.

442306414391 is a deficient number, since it is larger than the sum of its proper divisors (1).

442306414391 is an equidigital number, since it uses as much as digits as its factorization.

442306414391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 442306414391 in words is "four hundred forty-two billion, three hundred six million, four hundred fourteen thousand, three hundred ninety-one".