448573385 has 36 divisors (see below), whose sum is σ = 604295244. Its totient is φ = 317761920.

The previous prime is 448573381. The next prime is 448573387. The reversal of 448573385 is 583375844.

It can be written as a sum of positive squares in 6 ways, for example, as 15808576 + 432764809 = 3976^2 + 20803^2 .

It is not a de Polignac number, because 448573385 - 2² = 448573381 is a prime.

It is a Duffinian number.

Its product of digits (1612800) is a multiple of the sum of its prime divisors (126).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448573381) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6317900 + ... + 6317970.

It is an arithmetic number, because the mean of its divisors is an integer number (16785979).

Almost surely, 2^448573385 is an apocalyptic number.

It is an amenable number.

448573385 is a deficient number, since it is larger than the sum of its proper divisors (155721859).

448573385 is an equidigital number, since it uses as much as digits as its factorization.

448573385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 126 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The square root of 448573385 is about 21179.5511047803. The cubic root of 448573385 is about 765.4987762149.

The spelling of 448573385 in words is "four hundred forty-eight million, five hundred seventy-three thousand, three hundred eighty-five".