448015989390 has 32 divisors (see below), whose sum is σ = 1109923485696. Its totient is φ = 115617029280.

The previous prime is 448015989383. The next prime is 448015989419. The reversal of 448015989390 is 93989510844.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240867882 + ... + 240869741.

It is an arithmetic number, because the mean of its divisors is an integer number (34685108928).

Almost surely, 2^448015989390 is an apocalyptic number.

448015989390 is an abundant number, since it is smaller than the sum of its proper divisors (661907496306).

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

448015989390 is a wasteful number, since it uses less digits than its factorization.

448015989390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481737664.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 448015989390 in words is "four hundred forty-eight billion, fifteen million, nine hundred eighty-nine thousand, three hundred ninety".