442741624 has 16 divisors (see below), whose sum is σ = 893997720. Its totient is φ = 204342240.

The previous prime is 442741609. The next prime is 442741679. The reversal of 442741624 is 426147244.

It is a self number, because there is not a number n which added to its sum of digits gives 442741624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128462 + ... + 2128669.

Almost surely, 2^442741624 is an apocalyptic number.

It is an amenable number.

442741624 is an abundant number, since it is smaller than the sum of its proper divisors (451256096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442741624 is a wasteful number, since it uses less digits than its factorization.

442741624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257150 (or 4257146 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 442741624 is about 21041.4263775059. The cubic root of 442741624 is about 762.1669596011.

Adding to 442741624 its reverse (426147244), we get a palindrome (868888868).

The spelling of 442741624 in words is "four hundred forty-two million, seven hundred forty-one thousand, six hundred twenty-four".