442223242 has 8 divisors (see below), whose sum is σ = 665428356. Its totient is φ = 220413792.

The previous prime is 442223239. The next prime is 442223263. The reversal of 442223242 is 242322244.

It can be written as a sum of positive squares in 2 ways, for example, as 362102841 + 80120401 = 19029^2 + 8951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×442223242³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 348123 + ... + 349390.

Almost surely, 2^442223242 is an apocalyptic number.

442223242 is a deficient number, since it is larger than the sum of its proper divisors (223205114).

442223242 is a wasteful number, since it uses less digits than its factorization.

442223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697832.

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

The square root of 442223242 is about 21029.1046409494. The cubic root of 442223242 is about 761.8693835360.

Adding to 442223242 its reverse (242322244), we get a palindrome (684545486).

The spelling of 442223242 in words is "four hundred forty-two million, two hundred twenty-three thousand, two hundred forty-two".