442435013 has 12 divisors (see below), whose sum is σ = 477715332. Its totient is φ = 409566720.

The previous prime is 442435003. The next prime is 442435027. The reversal of 442435013 is 310534244.

It can be written as a sum of positive squares in 6 ways, for example, as 5750404 + 436684609 = 2398^2 + 20897^2 .

It is not a de Polignac number, because 442435013 - 2⁸ = 442434757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442435003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5081 + ... + 30177.

It is an arithmetic number, because the mean of its divisors is an integer number (39809611).

Almost surely, 2^442435013 is an apocalyptic number.

It is an amenable number.

442435013 is a deficient number, since it is larger than the sum of its proper divisors (35280319).

442435013 is a wasteful number, since it uses less digits than its factorization.

442435013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25192 (or 25175 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 442435013 is about 21034.1392265051. The cubic root of 442435013 is about 761.9909783011.

Adding to 442435013 its reverse (310534244), we get a palindrome (752969257).

The spelling of 442435013 in words is "four hundred forty-two million, four hundred thirty-five thousand, thirteen".