448203340138 has 16 divisors (see below), whose sum is σ = 683946711360. Its totient is φ = 220223844256.

The previous prime is 448203340121. The next prime is 448203340147. The reversal of 448203340138 is 831043302844.

It is a happy number.

It is a super-2 number, since 2×448203340138² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 448203340138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356206 + ... + 1011577.

It is an arithmetic number, because the mean of its divisors is an integer number (42746669460).

Almost surely, 2^448203340138 is an apocalyptic number.

448203340138 is a deficient number, since it is larger than the sum of its proper divisors (235743371222).

448203340138 is a wasteful number, since it uses less digits than its factorization.

448203340138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370621.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 448203340138 in words is "four hundred forty-eight billion, two hundred three million, three hundred forty thousand, one hundred thirty-eight".