442488713 has 2 divisors, whose sum is σ = 442488714. Its totient is φ = 442488712.

The previous prime is 442488671. The next prime is 442488719. The reversal of 442488713 is 317884244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277289104 + 165199609 = 16652^2 + 12853^2 .

It is a cyclic number.

It is not a de Polignac number, because 442488713 - 2⁸ = 442488457 is a prime.

It is a super-2 number, since 2×442488713² = 391592522264792738, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442488719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221244356 + 221244357.

It is an arithmetic number, because the mean of its divisors is an integer number (221244357).

Almost surely, 2^442488713 is an apocalyptic number.

It is an amenable number.

442488713 is a deficient number, since it is larger than the sum of its proper divisors (1).

442488713 is an equidigital number, since it uses as much as digits as its factorization.

442488713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 41.

The square root of 442488713 is about 21035.4156840315. The cubic root of 442488713 is about 762.0218056233.

The spelling of 442488713 in words is "four hundred forty-two million, four hundred eighty-eight thousand, seven hundred thirteen".