442413439 has 6 divisors (see below), whose sum is σ = 479063256. Its totient is φ = 408381480.

The previous prime is 442413437. The next prime is 442413443. The reversal of 442413439 is 934314244.

It is not a de Polignac number, because 442413439 - 2¹ = 442413437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442413437) 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 5 ways as a sum of consecutive naturals, for example, 1308747 + ... + 1309084.

It is an arithmetic number, because the mean of its divisors is an integer number (79843876).

Almost surely, 2^442413439 is an apocalyptic number.

442413439 is a deficient number, since it is larger than the sum of its proper divisors (36649817).

442413439 is a wasteful number, since it uses less digits than its factorization.

442413439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617857 (or 2617844 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 442413439 is about 21033.6263872876. The cubic root of 442413439 is about 761.9785927076.

The spelling of 442413439 in words is "four hundred forty-two million, four hundred thirteen thousand, four hundred thirty-nine".