2381648 has 10 divisors (see below), whose sum is σ = 4614474. Its totient is φ = 1190816.

The previous prime is 2381633. The next prime is 2381651. The reversal of 2381648 is 8461832.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 107584 = 1508^2 + 328^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74411 + ... + 74442.

2^2381648 is an apocalyptic number.

It is an amenable number.

2381648 is a deficient number, since it is larger than the sum of its proper divisors (2232826).

2381648 is a wasteful number, since it uses less digits than its factorization.

2381648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148861 (or 148855 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 2381648 is about 1543.2588894933. The cubic root of 2381648 is about 133.5444544216.

The spelling of 2381648 in words is "two million, three hundred eighty-one thousand, six hundred forty-eight".