442555543 has 16 divisors (see below), whose sum is σ = 494968320. Its totient is φ = 393227136.

The previous prime is 442555537. The next prime is 442555591. The reversal of 442555543 is 345555244.

It is not a de Polignac number, because 442555543 - 2¹⁷ = 442424471 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 (442555343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96930 + ... + 101392.

It is an arithmetic number, because the mean of its divisors is an integer number (30935520).

Almost surely, 2^442555543 is an apocalyptic number.

442555543 is a deficient number, since it is larger than the sum of its proper divisors (52412777).

442555543 is a wasteful number, since it uses less digits than its factorization.

442555543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806.

The product of its digits is 240000, while the sum is 37.

The square root of 442555543 is about 21037.0041355703. The cubic root of 442555543 is about 762.0601669436.

It can be divided in two parts, 442 and 555543, that added together give a triangular number (555985 = T₁₀₅₄).

The spelling of 442555543 in words is "four hundred forty-two million, five hundred fifty-five thousand, five hundred forty-three".