442222311 has 24 divisors (see below), whose sum is σ = 625730560. Its totient is φ = 277721136.

The previous prime is 442222279. The next prime is 442222327. The reversal of 442222311 is 113222244.

It is not a de Polignac number, because 442222311 - 2⁵ = 442222279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442222331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104250 + ... + 108408.

Almost surely, 2^442222311 is an apocalyptic number.

442222311 is a deficient number, since it is larger than the sum of its proper divisors (183508249).

442222311 is a wasteful number, since it uses less digits than its factorization.

442222311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275 (or 4252 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 442222311 is about 21029.0825049501. The cubic root of 442222311 is about 761.8688488883.

Adding to 442222311 its reverse (113222244), we get a palindrome (555444555).

The spelling of 442222311 in words is "four hundred forty-two million, two hundred twenty-two thousand, three hundred eleven".