442244513 has 8 divisors (see below), whose sum is σ = 465763200. Its totient is φ = 418750128.

The previous prime is 442244507. The next prime is 442244521. The reversal of 442244513 is 315442244.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442244513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442244503) 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, 40520 + ... + 50262.

It is an arithmetic number, because the mean of its divisors is an integer number (58220400).

Almost surely, 2^442244513 is an apocalyptic number.

It is an amenable number.

442244513 is a deficient number, since it is larger than the sum of its proper divisors (23518687).

442244513 is a wasteful number, since it uses less digits than its factorization.

442244513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151.

The product of its digits is 15360, while the sum is 29.

The square root of 442244513 is about 21029.6103863101. The cubic root of 442244513 is about 761.8815986815.

Adding to 442244513 its reverse (315442244), we get a palindrome (757686757).

The spelling of 442244513 in words is "four hundred forty-two million, two hundred forty-four thousand, five hundred thirteen".