442544113 has 8 divisors (see below), whose sum is σ = 486300960. Its totient is φ = 399374880.

The previous prime is 442544099. The next prime is 442544129. The reversal of 442544113 is 311445244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442544113 - 2¹³ = 442535921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442544183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145323 + ... + 148336.

It is an arithmetic number, because the mean of its divisors is an integer number (60787620).

Almost surely, 2^442544113 is an apocalyptic number.

It is an amenable number.

442544113 is a deficient number, since it is larger than the sum of its proper divisors (43756847).

442544113 is a wasteful number, since it uses less digits than its factorization.

442544113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293807.

The product of its digits is 7680, while the sum is 28.

The square root of 442544113 is about 21036.7324696589. The cubic root of 442544113 is about 762.0536062434.

Adding to 442544113 its reverse (311445244), we get a palindrome (753989357).

The spelling of 442544113 in words is "four hundred forty-two million, five hundred forty-four thousand, one hundred thirteen".