442143241 has 8 divisors (see below), whose sum is σ = 456994944. Its totient is φ = 427518480.

The previous prime is 442143223. The next prime is 442143253. The reversal of 442143241 is 142341244.

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 442143241 - 2⁷ = 442143113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442143841) 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, 52770 + ... + 60571.

It is an arithmetic number, because the mean of its divisors is an integer number (57124368).

Almost surely, 2^442143241 is an apocalyptic number.

It is an amenable number.

442143241 is a deficient number, since it is larger than the sum of its proper divisors (14851703).

442143241 is a wasteful number, since it uses less digits than its factorization.

442143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113471.

The product of its digits is 3072, while the sum is 25.

The square root of 442143241 is about 21027.2024054557. The cubic root of 442143241 is about 761.8234384246.

Adding to 442143241 its reverse (142341244), we get a palindrome (584484485).

The spelling of 442143241 in words is "four hundred forty-two million, one hundred forty-three thousand, two hundred forty-one".