442232242 has 4 divisors (see below), whose sum is σ = 663348366. Its totient is φ = 221116120.

The previous prime is 442232221. The next prime is 442232257. The reversal of 442232242 is 242232244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 393665281 + 48566961 = 19841^2 + 6969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110558059 + ... + 110558062.

Almost surely, 2^442232242 is an apocalyptic number.

442232242 is a deficient number, since it is larger than the sum of its proper divisors (221116124).

442232242 is a wasteful number, since it uses less digits than its factorization.

442232242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221116123.

The product of its digits is 6144, while the sum is 25.

The square root of 442232242 is about 21029.3186289998. The cubic root of 442232242 is about 761.8745519496.

Adding to 442232242 its reverse (242232244), we get a palindrome (684464486).

The spelling of 442232242 in words is "four hundred forty-two million, two hundred thirty-two thousand, two hundred forty-two".