442671415 has 12 divisors (see below), whose sum is σ = 564293016. Its totient is φ = 333304448.

The previous prime is 442671407. The next prime is 442671419. The reversal of 442671415 is 514176244.

It is not a de Polignac number, because 442671415 - 2³ = 442671407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442671419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151729 + ... + 154618.

It is an arithmetic number, because the mean of its divisors is an integer number (47024418).

Almost surely, 2^442671415 is an apocalyptic number.

442671415 is a deficient number, since it is larger than the sum of its proper divisors (121621601).

442671415 is a wasteful number, since it uses less digits than its factorization.

442671415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306386 (or 306369 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 442671415 is about 21039.7579596344. The cubic root of 442671415 is about 762.1266698806.

The spelling of 442671415 in words is "four hundred forty-two million, six hundred seventy-one thousand, four hundred fifteen".