442226245 has 4 divisors (see below), whose sum is σ = 530671500. Its totient is φ = 353780992.

The previous prime is 442226237. The next prime is 442226293. The reversal of 442226245 is 542622244.

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

It can be written as a sum of positive squares in 2 ways, for example, as 239847169 + 202379076 = 15487^2 + 14226^2 .

It is a cyclic number.

It is not a de Polignac number, because 442226245 - 2³ = 442226237 is a prime.

It is a congruent number.

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, 44222620 + ... + 44222629.

It is an arithmetic number, because the mean of its divisors is an integer number (132667875).

Almost surely, 2^442226245 is an apocalyptic number.

It is an amenable number.

442226245 is a deficient number, since it is larger than the sum of its proper divisors (88445255).

442226245 is an equidigital number, since it uses as much as digits as its factorization.

442226245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88445254.

The product of its digits is 30720, while the sum is 31.

The square root of 442226245 is about 21029.1760418710. The cubic root of 442226245 is about 761.8711080711.

Adding to 442226245 its reverse (542622244), we get a palindrome (984848489).

The spelling of 442226245 in words is "four hundred forty-two million, two hundred twenty-six thousand, two hundred forty-five".