2800648 has 16 divisors (see below), whose sum is σ = 5560380. Its totient is φ = 1317888.

The previous prime is 2800643. The next prime is 2800663. The reversal of 2800648 is 8460082.

It can be written as a sum of positive squares in 2 ways, for example, as 2256004 + 544644 = 1502^2 + 738^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10161 + ... + 10432.

2^2800648 is an apocalyptic number.

It is an amenable number.

2800648 is a deficient number, since it is larger than the sum of its proper divisors (2759732).

2800648 is a wasteful number, since it uses less digits than its factorization.

2800648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616 (or 20612 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 2800648 is about 1673.5136689015. The cubic root of 2800648 is about 140.9568467778.

The spelling of 2800648 in words is "two million, eight hundred thousand, six hundred forty-eight".