442999458 has 96 divisors (see below), whose sum is σ = 1105902720. Its totient is φ = 126846720.

The previous prime is 442999457. The next prime is 442999541. The reversal of 442999458 is 854999244.

It is not an unprimeable number, because it can be changed into a prime (442999457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 404760 + ... + 405852.

It is an arithmetic number, because the mean of its divisors is an integer number (11519820).

Almost surely, 2^442999458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442999458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552951360).

442999458 is an abundant number, since it is smaller than the sum of its proper divisors (662903262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442999458 is a wasteful number, since it uses less digits than its factorization.

442999458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1221 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 442999458 is about 21047.5523042467. The cubic root of 442999458 is about 762.3148821596.

It can be divided in two parts, 4429994 and 58, that multiplied together give a palindrome (256939652).

The spelling of 442999458 in words is "four hundred forty-two million, nine hundred ninety-nine thousand, four hundred fifty-eight".