443141021 has 4 divisors (see below), whose sum is σ = 444396732. Its totient is φ = 441885312.

The previous prime is 443141011. The next prime is 443141029. The reversal of 443141021 is 120141344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99780121 + 343360900 = 9989^2 + 18530^2 .

It is a cyclic number.

It is not a de Polignac number, because 443141021 - 2¹⁰ = 443139997 is a prime.

It is a super-3 number, since 3×443141021³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 443140984 and 443141002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443141029) 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 3 ways as a sum of consecutive naturals, for example, 627326 + ... + 628031.

It is an arithmetic number, because the mean of its divisors is an integer number (111099183).

Almost surely, 2^443141021 is an apocalyptic number.

It is an amenable number.

443141021 is a deficient number, since it is larger than the sum of its proper divisors (1255711).

443141021 is a wasteful number, since it uses less digits than its factorization.

443141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255710.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 443141021 is about 21050.9149682383. The cubic root of 443141021 is about 762.3960741993.

Adding to 443141021 its reverse (120141344), we get a palindrome (563282365).

The spelling of 443141021 in words is "four hundred forty-three million, one hundred forty-one thousand, twenty-one".