442493417 has 2 divisors, whose sum is σ = 442493418. Its totient is φ = 442493416.

The previous prime is 442493383. The next prime is 442493431. The reversal of 442493417 is 714394244.

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., 442218841 + 274576 = 21029^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 442493417 - 2²⁶ = 375384553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442493497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221246708 + 221246709.

It is an arithmetic number, because the mean of its divisors is an integer number (221246709).

Almost surely, 2^442493417 is an apocalyptic number.

It is an amenable number.

442493417 is a deficient number, since it is larger than the sum of its proper divisors (1).

442493417 is an equidigital number, since it uses as much as digits as its factorization.

442493417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 442493417 is about 21035.5274951687. The cubic root of 442493417 is about 762.0245059090.

The spelling of 442493417 in words is "four hundred forty-two million, four hundred ninety-three thousand, four hundred seventeen".