442421849 has 8 divisors (see below), whose sum is σ = 446292000. Its totient is φ = 438561792.

The previous prime is 442421843. The next prime is 442421851. The reversal of 442421849 is 948124244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442421849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442421843) 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, 104822 + ... + 108960.

It is an arithmetic number, because the mean of its divisors is an integer number (55786500).

Almost surely, 2^442421849 is an apocalyptic number.

It is an amenable number.

442421849 is a deficient number, since it is larger than the sum of its proper divisors (3870151).

442421849 is a wasteful number, since it uses less digits than its factorization.

442421849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047.

The product of its digits is 73728, while the sum is 38.

The square root of 442421849 is about 21033.8263043128. The cubic root of 442421849 is about 761.9834209209.

The spelling of 442421849 in words is "four hundred forty-two million, four hundred twenty-one thousand, eight hundred forty-nine".