442235213 has 8 divisors (see below), whose sum is σ = 505808832. Its totient is φ = 378760896.

The previous prime is 442235201. The next prime is 442235221. The reversal of 442235213 is 312532244.

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 442235213 - 2¹⁸ = 441973069 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 (442235273) 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, 15020 + ... + 33317.

It is an arithmetic number, because the mean of its divisors is an integer number (63226104).

Almost surely, 2^442235213 is an apocalyptic number.

It is an amenable number.

442235213 is a deficient number, since it is larger than the sum of its proper divisors (63573619).

442235213 is a wasteful number, since it uses less digits than its factorization.

442235213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49651.

The product of its digits is 5760, while the sum is 26.

The square root of 442235213 is about 21029.3892683549. The cubic root of 442235213 is about 761.8762580850.

Adding to 442235213 its reverse (312532244), we get a palindrome (754767457).

The spelling of 442235213 in words is "four hundred forty-two million, two hundred thirty-five thousand, two hundred thirteen".