442573631 has 8 divisors (see below), whose sum is σ = 493271280. Its totient is φ = 394616448.

The previous prime is 442573627. The next prime is 442573697. The reversal of 442573631 is 136375244.

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

It is a cyclic number.

It is not a de Polignac number, because 442573631 - 2² = 442573627 is a prime.

It is a super-2 number, since 2×442573631² = 391742837713048322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442573591 and 442573600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442573331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684776 + ... + 685421.

It is an arithmetic number, because the mean of its divisors is an integer number (61658910).

Almost surely, 2^442573631 is an apocalyptic number.

442573631 is a deficient number, since it is larger than the sum of its proper divisors (50697649).

442573631 is a wasteful number, since it uses less digits than its factorization.

442573631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370233.

The product of its digits is 60480, while the sum is 35.

The square root of 442573631 is about 21037.4340403006. The cubic root of 442573631 is about 762.0705490351.

The spelling of 442573631 in words is "four hundred forty-two million, five hundred seventy-three thousand, six hundred thirty-one".