442441431 has 6 divisors (see below), whose sum is σ = 639082080. Its totient is φ = 294960948.

The previous prime is 442441327. The next prime is 442441453. The reversal of 442441431 is 134144244.

It is not a de Polignac number, because 442441431 - 2¹¹ = 442439383 is a prime.

It is a super-2 number, since 2×442441431² = 391508839730655522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442441395 and 442441404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442441231) 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, 24580071 + ... + 24580088.

It is an arithmetic number, because the mean of its divisors is an integer number (106513680).

Almost surely, 2^442441431 is an apocalyptic number.

442441431 is a deficient number, since it is larger than the sum of its proper divisors (196640649).

442441431 is a wasteful number, since it uses less digits than its factorization.

442441431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49160165 (or 49160162 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 442441431 is about 21034.2917874598. The cubic root of 442441431 is about 761.9946627853.

Adding to 442441431 its reverse (134144244), we get a palindrome (576585675).

The spelling of 442441431 in words is "four hundred forty-two million, four hundred forty-one thousand, four hundred thirty-one".