442440030 has 16 divisors (see below), whose sum is σ = 1061856144. Its totient is φ = 117984000.

The previous prime is 442440017. The next prime is 442440041. The reversal of 442440030 is 30044244.

It is a junction number, because it is equal to n+sod(n) for n = 442439979 and 442440006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7373971 + ... + 7374030.

It is an arithmetic number, because the mean of its divisors is an integer number (66366009).

Almost surely, 2^442440030 is an apocalyptic number.

442440030 is an abundant number, since it is smaller than the sum of its proper divisors (619416114).

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

442440030 is a wasteful number, since it uses less digits than its factorization.

442440030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748011.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 442440030 is about 21034.2584846721. The cubic root of 442440030 is about 761.9938584938.

Adding to 442440030 its reverse (30044244), we get a palindrome (472484274).

The spelling of 442440030 in words is "four hundred forty-two million, four hundred forty thousand, thirty".