442304142 has 32 divisors (see below), whose sum is σ = 1038308352. Its totient is φ = 122956704.

The previous prime is 442304141. The next prime is 442304183. The reversal of 442304142 is 241403244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442304141) 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, 140758 + ... + 143865.

It is an arithmetic number, because the mean of its divisors is an integer number (32447136).

Almost surely, 2^442304142 is an apocalyptic number.

442304142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

442304142 is an abundant number, since it is smaller than the sum of its proper divisors (596004210).

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

442304142 is a wasteful number, since it uses less digits than its factorization.

442304142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284672.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442304142 is about 21031.0280775810. The cubic root of 442304142 is about 761.9158393145.

Adding to 442304142 its reverse (241403244), we get a palindrome (683707386).

The spelling of 442304142 in words is "four hundred forty-two million, three hundred four thousand, one hundred forty-two".