448319139 has 8 divisors (see below), whose sum is σ = 603562752. Its totient is φ = 295977480.

The previous prime is 448319119. The next prime is 448319143. The reversal of 448319139 is 931913844.

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

It is not a de Polignac number, because 448319139 - 2¹¹ = 448317091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 448319139.

It is not an unprimeable number, because it can be changed into a prime (448319119) 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, 725127 + ... + 725744.

It is an arithmetic number, because the mean of its divisors is an integer number (75445344).

Almost surely, 2^448319139 is an apocalyptic number.

448319139 is a deficient number, since it is larger than the sum of its proper divisors (155243613).

448319139 is a wasteful number, since it uses less digits than its factorization.

448319139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450977.

The product of its digits is 93312, while the sum is 42.

The square root of 448319139 is about 21173.5480966228. The cubic root of 448319139 is about 765.3541237156.

The spelling of 448319139 in words is "four hundred forty-eight million, three hundred nineteen thousand, one hundred thirty-nine".