442464531 has 8 divisors (see below), whose sum is σ = 590606784. Its totient is φ = 294649320.

The previous prime is 442464527. The next prime is 442464553. The reversal of 442464531 is 135464244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442464531 - 2² = 442464527 is a prime.

It is a super-2 number, since 2×442464531² = 391549722386099922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442464492 and 442464501.

It is not an unprimeable number, because it can be changed into a prime (442464521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78585 + ... + 84026.

It is an arithmetic number, because the mean of its divisors is an integer number (73825848).

Almost surely, 2^442464531 is an apocalyptic number.

442464531 is a deficient number, since it is larger than the sum of its proper divisors (148142253).

442464531 is a wasteful number, since it uses less digits than its factorization.

442464531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163521.

The product of its digits is 46080, while the sum is 33.

The square root of 442464531 is about 21034.8408836387. The cubic root of 442464531 is about 762.0079238779.

The spelling of 442464531 in words is "four hundred forty-two million, four hundred sixty-four thousand, five hundred thirty-one".