442432242 has 48 divisors (see below), whose sum is σ = 1159996032. Its totient is φ = 118972800.

The previous prime is 442432241. The next prime is 442432337. The reversal of 442432242 is 242234244.

It is a super-2 number, since 2×442432242² = 391492577522293128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442432241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101134 + ... + 105417.

It is an arithmetic number, because the mean of its divisors is an integer number (24166584).

Almost surely, 2^442432242 is an apocalyptic number.

442432242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

442432242 is an abundant number, since it is smaller than the sum of its proper divisors (717563790).

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

442432242 is a wasteful number, since it uses less digits than its factorization.

442432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206583 (or 206580 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 442432242 is about 21034.0733572934. The cubic root of 442432242 is about 761.9893874976.

Adding to 442432242 its reverse (242234244), we get a palindrome (684666486).

The spelling of 442432242 in words is "four hundred forty-two million, four hundred thirty-two thousand, two hundred forty-two".