448427389 has 8 divisors (see below), whose sum is σ = 468179712. Its totient is φ = 428696400.

The previous prime is 448427381. The next prime is 448427401. The reversal of 448427389 is 983724844.

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 448427389 - 2³ = 448427381 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 (448427381) 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, 49927 + ... + 58219.

It is an arithmetic number, because the mean of its divisors is an integer number (58522464).

Almost surely, 2^448427389 is an apocalyptic number.

It is an amenable number.

448427389 is a deficient number, since it is larger than the sum of its proper divisors (19752323).

448427389 is a wasteful number, since it uses less digits than its factorization.

448427389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667.

The product of its digits is 1548288, while the sum is 49.

The square root of 448427389 is about 21176.1041978925. The cubic root of 448427389 is about 765.4157189122.

The spelling of 448427389 in words is "four hundred forty-eight million, four hundred twenty-seven thousand, three hundred eighty-nine".