442022953 has 4 divisors (see below), whose sum is σ = 444989700. Its totient is φ = 439056208.

The previous prime is 442022939. The next prime is 442022963. The reversal of 442022953 is 359220244.

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 17539344 + 424483609 = 4188^2 + 20603^2 .

It is a cyclic number.

It is not a de Polignac number, because 442022953 - 2²⁵ = 408468521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442022923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483150 + ... + 1483447.

It is an arithmetic number, because the mean of its divisors is an integer number (111247425).

Almost surely, 2^442022953 is an apocalyptic number.

It is an amenable number.

442022953 is a deficient number, since it is larger than the sum of its proper divisors (2966747).

442022953 is a wasteful number, since it uses less digits than its factorization.

442022953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966746.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 442022953 is about 21024.3419159792. The cubic root of 442022953 is about 761.7543457861.

The spelling of 442022953 in words is "four hundred forty-two million, twenty-two thousand, nine hundred fifty-three".