404649448 has 128 divisors (see below), whose sum is σ = 940032000. Its totient is φ = 162993600.

The previous prime is 404649407. The next prime is 404649449. The reversal of 404649448 is 844946404.

It is not an unprimeable number, because it can be changed into a prime (404649449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5699253 + ... + 5699323.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^404649448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404649448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470016000).

404649448 is an abundant number, since it is smaller than the sum of its proper divisors (535382552).

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

404649448 is a wasteful number, since it uses less digits than its factorization.

404649448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The square root of 404649448 is about 20115.9003775620. The cubic root of 404649448 is about 739.6500951063.

The spelling of 404649448 in words is "four hundred four million, six hundred forty-nine thousand, four hundred forty-eight".