448109631 has 16 divisors (see below), whose sum is σ = 664295520. Its totient is φ = 298546560.

The previous prime is 448109591. The next prime is 448109693. The reversal of 448109631 is 136901844.

448109631 is a `hidden beast` number, since 4 + 4 + 8 + 10 + 9 + 631 = 666.

It is not a de Polignac number, because 448109631 - 2⁷ = 448109503 is a prime.

It is a super-2 number, since 2×448109631² = 401604482789912322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448109231) 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, 46141 + ... + 55001.

It is an arithmetic number, because the mean of its divisors is an integer number (41518470).

Almost surely, 2^448109631 is an apocalyptic number.

448109631 is a deficient number, since it is larger than the sum of its proper divisors (216185889).

448109631 is a wasteful number, since it uses less digits than its factorization.

448109631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743 (or 10737 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 448109631 is about 21168.6001190442. The cubic root of 448109631 is about 765.2348836608.

The spelling of 448109631 in words is "four hundred forty-eight million, one hundred nine thousand, six hundred thirty-one".