442466121 has 8 divisors (see below), whose sum is σ = 590132160. Its totient is φ = 294888752.

The previous prime is 442466117. The next prime is 442466161. The reversal of 442466121 is 121664244.

It is a happy number.

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 442466121 - 2² = 442466117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442466161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9486 + ... + 31223.

It is an arithmetic number, because the mean of its divisors is an integer number (73766520).

Almost surely, 2^442466121 is an apocalyptic number.

It is an amenable number.

442466121 is a deficient number, since it is larger than the sum of its proper divisors (147666039).

442466121 is a wasteful number, since it uses less digits than its factorization.

442466121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44335.

The product of its digits is 9216, while the sum is 30.

The square root of 442466121 is about 21034.8786780433. The cubic root of 442466121 is about 762.0088366374.

The spelling of 442466121 in words is "four hundred forty-two million, four hundred sixty-six thousand, one hundred twenty-one".