442938571 has 8 divisors (see below), whose sum is σ = 467861504. Its totient is φ = 418680360.

The previous prime is 442938557. The next prime is 442938607. The reversal of 442938571 is 175839244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442938571 - 2⁷ = 442938443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442938521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164811 + ... + 167476.

It is an arithmetic number, because the mean of its divisors is an integer number (58482688).

Almost surely, 2^442938571 is an apocalyptic number.

442938571 is a deficient number, since it is larger than the sum of its proper divisors (24922933).

442938571 is a wasteful number, since it uses less digits than its factorization.

442938571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332361.

The product of its digits is 241920, while the sum is 43.

The square root of 442938571 is about 21046.1058393233. The cubic root of 442938571 is about 762.2799557114.

The spelling of 442938571 in words is "four hundred forty-two million, nine hundred thirty-eight thousand, five hundred seventy-one".