448447398 has 32 divisors (see below), whose sum is σ = 1046836224. Its totient is φ = 125401152.

The previous prime is 448447397. The next prime is 448447409. The reversal of 448447398 is 893744844.

It is a happy number.

It is a super-2 number, since 2×448447398² = 402210137545940808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 448447398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448447397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111615 + ... + 115562.

It is an arithmetic number, because the mean of its divisors is an integer number (32713632).

Almost surely, 2^448447398 is an apocalyptic number.

448447398 is an abundant number, since it is smaller than the sum of its proper divisors (598388826).

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

448447398 is a wasteful number, since it uses less digits than its factorization.

448447398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227236.

The product of its digits is 3096576, while the sum is 51.

The square root of 448447398 is about 21176.5766355188. The cubic root of 448447398 is about 765.4271031227.

The spelling of 448447398 in words is "four hundred forty-eight million, four hundred forty-seven thousand, three hundred ninety-eight".