442430313 has 16 divisors (see below), whose sum is σ = 635900160. Its totient is φ = 272001024.

The previous prime is 442430291. The next prime is 442430363. The reversal of 442430313 is 313034244.

It is not a de Polignac number, because 442430313 - 2¹⁶ = 442364777 is a prime.

It is a super-2 number, since 2×442430313² = 391489163722555938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442430363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40048 + ... + 49886.

It is an arithmetic number, because the mean of its divisors is an integer number (39743760).

Almost surely, 2^442430313 is an apocalyptic number.

It is an amenable number.

442430313 is a deficient number, since it is larger than the sum of its proper divisors (193469847).

442430313 is a wasteful number, since it uses less digits than its factorization.

442430313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 442430313 is about 21034.0275030723. The cubic root of 442430313 is about 761.9882800741.

Adding to 442430313 its reverse (313034244), we get a palindrome (755464557).

The spelling of 442430313 in words is "four hundred forty-two million, four hundred thirty thousand, three hundred thirteen".