442022344 has 8 divisors (see below), whose sum is σ = 828791910. Its totient is φ = 221011168.

The previous prime is 442022333. The next prime is 442022369. The reversal of 442022344 is 443220244.

It can be written as a sum of positive squares in only one way, i.e., 418693444 + 23328900 = 20462^2 + 4830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27626389 + ... + 27626404.

Almost surely, 2^442022344 is an apocalyptic number.

It is an amenable number.

442022344 is a deficient number, since it is larger than the sum of its proper divisors (386769566).

442022344 is a wasteful number, since it uses less digits than its factorization.

442022344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55252799 (or 55252795 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 442022344 is about 21024.3274327623. The cubic root of 442022344 is about 761.7539959486.

Adding to 442022344 its reverse (443220244), we get a palindrome (885242588).

The spelling of 442022344 in words is "four hundred forty-two million, twenty-two thousand, three hundred forty-four".