442450489 has 8 divisors (see below), whose sum is σ = 476804160. Its totient is φ = 408142416.

The previous prime is 442450469. The next prime is 442450493. The reversal of 442450489 is 984054244.

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 442450489 - 2¹⁹ = 441926201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442450439) 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, 10302 + ... + 31480.

It is an arithmetic number, because the mean of its divisors is an integer number (59600520).

Almost surely, 2^442450489 is an apocalyptic number.

It is an amenable number.

442450489 is a deficient number, since it is larger than the sum of its proper divisors (34353671).

442450489 is a wasteful number, since it uses less digits than its factorization.

442450489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22799.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 442450489 is about 21034.5071014274. The cubic root of 442450489 is about 761.9998627960. Note that the first 3 decimals are identical.

The spelling of 442450489 in words is "four hundred forty-two million, four hundred fifty thousand, four hundred eighty-nine".