442340605 has 16 divisors (see below), whose sum is σ = 607348224. Its totient is φ = 302964480.

The previous prime is 442340593. The next prime is 442340609. The reversal of 442340605 is 506043244.

It is not a de Polignac number, because 442340605 - 2⁵ = 442340573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442340609) 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, 24949 + ... + 38821.

It is an arithmetic number, because the mean of its divisors is an integer number (37959264).

Almost surely, 2^442340605 is an apocalyptic number.

It is an amenable number.

442340605 is a deficient number, since it is larger than the sum of its proper divisors (165007619).

442340605 is a wasteful number, since it uses less digits than its factorization.

442340605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14796.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 442340605 is about 21031.8949455345. The cubic root of 442340605 is about 761.9367758687.

Adding to 442340605 its reverse (506043244), we get a palindrome (948383849).

The spelling of 442340605 in words is "four hundred forty-two million, three hundred forty thousand, six hundred five".