442222210 has 16 divisors (see below), whose sum is σ = 796827456. Its totient is φ = 176705008.

The previous prime is 442222199. The next prime is 442222229. The reversal of 442222210 is 12222244.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12664 + ... + 32323.

It is an arithmetic number, because the mean of its divisors is an integer number (49801716).

Almost surely, 2^442222210 is an apocalyptic number.

442222210 is a deficient number, since it is larger than the sum of its proper divisors (354605246).

442222210 is a wasteful number, since it uses less digits than its factorization.

442222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45977.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 442222210 is about 21029.0801035138. The cubic root of 442222210 is about 761.8687908867.

Adding to 442222210 its reverse (12222244), we get a palindrome (454444454).

The spelling of 442222210 in words is "four hundred forty-two million, two hundred twenty-two thousand, two hundred ten".