442342241 has 12 divisors (see below), whose sum is σ = 493476816. Its totient is φ = 396120120.

The previous prime is 442342237. The next prime is 442342253. The reversal of 442342241 is 142243244.

It is a happy number.

It is not a de Polignac number, because 442342241 - 2² = 442342237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442342241.

It is not an unprimeable number, because it can be changed into a prime (442342231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19175 + ... + 35388.

It is an arithmetic number, because the mean of its divisors is an integer number (41123068).

Almost surely, 2^442342241 is an apocalyptic number.

It is an amenable number.

442342241 is a deficient number, since it is larger than the sum of its proper divisors (51134575).

442342241 is a wasteful number, since it uses less digits than its factorization.

442342241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54652 (or 54641 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 442342241 is about 21031.9338388081. The cubic root of 442342241 is about 761.9377152104.

Adding to 442342241 its reverse (142243244), we get a palindrome (584585485).

It can be divided in two parts, 4423 and 42241, that added together give a palindrome (46664).

The spelling of 442342241 in words is "four hundred forty-two million, three hundred forty-two thousand, two hundred forty-one".