442101313 has 4 divisors (see below), whose sum is σ = 446013828. Its totient is φ = 438188800.

The previous prime is 442101307. The next prime is 442101347. The reversal of 442101313 is 313101244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57274624 + 384826689 = 7568^2 + 19617^2 .

It is a cyclic number.

It is not a de Polignac number, because 442101313 - 2⁵ = 442101281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442101613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956088 + ... + 1956313.

It is an arithmetic number, because the mean of its divisors is an integer number (111503457).

Almost surely, 2^442101313 is an apocalyptic number.

It is an amenable number.

442101313 is a deficient number, since it is larger than the sum of its proper divisors (3912515).

442101313 is a wasteful number, since it uses less digits than its factorization.

442101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912514.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 442101313 is about 21026.2053875634. The cubic root of 442101313 is about 761.7993566792.

Adding to 442101313 its reverse (313101244), we get a palindrome (755202557).

The spelling of 442101313 in words is "four hundred forty-two million, one hundred one thousand, three hundred thirteen".