442414013 has 4 divisors (see below), whose sum is σ = 442554588. Its totient is φ = 442273440.

The previous prime is 442414003. The next prime is 442414019. The reversal of 442414013 is 310414244.

It is a happy number.

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 217474009 + 224940004 = 14747^2 + 14998^2 .

It is a cyclic number.

It is not a de Polignac number, because 442414013 - 2¹⁰ = 442412989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442414013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442414019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65456 + ... + 71897.

It is an arithmetic number, because the mean of its divisors is an integer number (110638647).

Almost surely, 2^442414013 is an apocalyptic number.

It is an amenable number.

442414013 is a deficient number, since it is larger than the sum of its proper divisors (140575).

442414013 is a wasteful number, since it uses less digits than its factorization.

442414013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140574.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 442414013 is about 21033.6400321010. The cubic root of 442414013 is about 761.9789222452.

Adding to 442414013 its reverse (310414244), we get a palindrome (752828257).

The spelling of 442414013 in words is "four hundred forty-two million, four hundred fourteen thousand, thirteen".