442130212 has 12 divisors (see below), whose sum is σ = 778657180. Its totient is φ = 219656736.

The previous prime is 442130197. The next prime is 442130239. The reversal of 442130212 is 212031244.

It can be written as a sum of positive squares in 2 ways, for example, as 281702656 + 160427556 = 16784^2 + 12666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442130212.

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, 351387 + ... + 352642.

Almost surely, 2^442130212 is an apocalyptic number.

It is an amenable number.

442130212 is a deficient number, since it is larger than the sum of its proper divisors (336526968).

442130212 is a wasteful number, since it uses less digits than its factorization.

442130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704190 (or 704188 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 442130212 is about 21026.8925902046. The cubic root of 442130212 is about 761.8159552576.

Adding to 442130212 its reverse (212031244), we get a palindrome (654161456).

The spelling of 442130212 in words is "four hundred forty-two million, one hundred thirty thousand, two hundred twelve".