442330540 has 12 divisors (see below), whose sum is σ = 928894176. Its totient is φ = 176932208.

The previous prime is 442330529. The next prime is 442330541. The reversal of 442330540 is 45033244.

It is not an unprimeable number, because it can be changed into a prime (442330541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11058244 + ... + 11058283.

It is an arithmetic number, because the mean of its divisors is an integer number (77407848).

Almost surely, 2^442330540 is an apocalyptic number.

It is an amenable number.

442330540 is an abundant number, since it is smaller than the sum of its proper divisors (486563636).

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

442330540 is a wasteful number, since it uses less digits than its factorization.

442330540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22116536 (or 22116534 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 442330540 is about 21031.6556647355. The cubic root of 442330540 is about 761.9309967988.

Adding to 442330540 its reverse (45033244), we get a palindrome (487363784).

The spelling of 442330540 in words is "four hundred forty-two million, three hundred thirty thousand, five hundred forty".