2009448 has 80 divisors (see below), whose sum is σ = 6446880. Its totient is φ = 572832.

The previous prime is 2009437. The next prime is 2009461. The reversal of 2009448 is 8449002.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4315 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (80586).

2^2009448 is an apocalyptic number.

2009448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223440).

2009448 is an abundant number, since it is smaller than the sum of its proper divisors (4437432).

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

2009448 is a wasteful number, since it uses less digits than its factorization.

2009448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2009448 is about 1417.5499991182. The cubic root of 2009448 is about 126.1901889679.

The spelling of 2009448 in words is "two million, nine thousand, four hundred forty-eight".