442042304 has 28 divisors (see below), whose sum is σ = 956922648. Its totient is φ = 200928000.

The previous prime is 442042303. The next prime is 442042309. The reversal of 442042304 is 403240244.

It is a self number, because there is not a number n which added to its sum of digits gives 442042304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442042301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313247 + ... + 314654.

Almost surely, 2^442042304 is an apocalyptic number.

442042304 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442042304 is an abundant number, since it is smaller than the sum of its proper divisors (514880344).

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

442042304 is a wasteful number, since it uses less digits than its factorization.

442042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627924 (or 627914 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 442042304 is about 21024.8021155967. The cubic root of 442042304 is about 761.7654617196.

Adding to 442042304 its reverse (403240244), we get a palindrome (845282548).

The spelling of 442042304 in words is "four hundred forty-two million, forty-two thousand, three hundred four".