442222445 has 32 divisors (see below), whose sum is σ = 651794688. Its totient is φ = 281115648.

The previous prime is 442222373. The next prime is 442222447. The reversal of 442222445 is 544222244.

It is a cyclic number.

It is not a de Polignac number, because 442222445 - 2¹² = 442218349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442222447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34319 + ... + 45411.

It is an arithmetic number, because the mean of its divisors is an integer number (20368584).

Almost surely, 2^442222445 is an apocalyptic number.

It is an amenable number.

442222445 is a deficient number, since it is larger than the sum of its proper divisors (209572243).

442222445 is a wasteful number, since it uses less digits than its factorization.

442222445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11189.

The product of its digits is 20480, while the sum is 29.

The square root of 442222445 is about 21029.0856910138. The cubic root of 442222445 is about 761.8689258408.

Adding to 442222445 its reverse (544222244), we get a palindrome (986444689).

The spelling of 442222445 in words is "four hundred forty-two million, two hundred twenty-two thousand, four hundred forty-five".