448974138 has 16 divisors (see below), whose sum is σ = 901365696. Its totient is φ = 149088480.

The previous prime is 448974133. The next prime is 448974157. The reversal of 448974138 is 831479844.

It is not an unprimeable number, because it can be changed into a prime (448974133) 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, 140683 + ... + 143838.

It is an arithmetic number, because the mean of its divisors is an integer number (56335356).

Almost surely, 2^448974138 is an apocalyptic number.

448974138 is an abundant number, since it is smaller than the sum of its proper divisors (452391558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448974138 is a wasteful number, since it uses less digits than its factorization.

448974138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284789.

The product of its digits is 774144, while the sum is 48.

The square root of 448974138 is about 21189.0098400090. The cubic root of 448974138 is about 765.7266724962.

The spelling of 448974138 in words is "four hundred forty-eight million, nine hundred seventy-four thousand, one hundred thirty-eight".