448165649 has 4 divisors (see below), whose sum is σ = 467651136. Its totient is φ = 428680164.

The previous prime is 448165643. The next prime is 448165687. The reversal of 448165649 is 946561844.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 448165649 - 2¹⁶ = 448100113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448165643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9742709 + ... + 9742754.

It is an arithmetic number, because the mean of its divisors is an integer number (116912784).

Almost surely, 2^448165649 is an apocalyptic number.

It is an amenable number.

448165649 is a deficient number, since it is larger than the sum of its proper divisors (19485487).

448165649 is a wasteful number, since it uses less digits than its factorization.

448165649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19485486.

The product of its digits is 829440, while the sum is 47.

The square root of 448165649 is about 21169.9232166770. The cubic root of 448165649 is about 765.2667695644.

The spelling of 448165649 in words is "four hundred forty-eight million, one hundred sixty-five thousand, six hundred forty-nine".