448640749 has 8 divisors (see below), whose sum is σ = 473927840. Its totient is φ = 423521136.

The previous prime is 448640747. The next prime is 448640807. The reversal of 448640749 is 947046844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 448640749 - 2¹ = 448640747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448640699 and 448640708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448640747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36342 + ... + 47095.

It is an arithmetic number, because the mean of its divisors is an integer number (59240980).

Almost surely, 2^448640749 is an apocalyptic number.

It is an amenable number.

448640749 is a deficient number, since it is larger than the sum of its proper divisors (25287091).

448640749 is a wasteful number, since it uses less digits than its factorization.

448640749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83739.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 448640749 is about 21181.1413526278. The cubic root of 448640749 is about 765.5370936007.

The spelling of 448640749 in words is "four hundred forty-eight million, six hundred forty thousand, seven hundred forty-nine".