442302405 has 16 divisors (see below), whose sum is σ = 712374144. Its totient is φ = 234331200.

The previous prime is 442302359. The next prime is 442302407. The reversal of 442302405 is 504203244.

It is not a de Polignac number, because 442302405 - 2¹² = 442298309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442302407) 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 in 15 ways as a sum of consecutive naturals, for example, 95374 + ... + 99903.

It is an arithmetic number, because the mean of its divisors is an integer number (44523384).

Almost surely, 2^442302405 is an apocalyptic number.

It is an amenable number.

442302405 is a deficient number, since it is larger than the sum of its proper divisors (270071739).

442302405 is a wasteful number, since it uses less digits than its factorization.

442302405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195436.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 442302405 is about 21030.9867814138. The cubic root of 442302405 is about 761.9148419242.

Adding to 442302405 its reverse (504203244), we get a palindrome (946505649).

The spelling of 442302405 in words is "four hundred forty-two million, three hundred two thousand, four hundred five".