2851648 has 28 divisors (see below), whose sum is σ = 5993892. Its totient is φ = 1341440.

The previous prime is 2851643. The next prime is 2851661. The reversal of 2851648 is 8461582.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 565504 = 1512^2 + 752^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851643) 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, 223 + ... + 2398.

2^2851648 is an apocalyptic number.

It is an amenable number.

2851648 is an abundant number, since it is smaller than the sum of its proper divisors (3142244).

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

2851648 is a wasteful number, since it uses less digits than its factorization.

2851648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2640 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 2851648 is about 1688.6823265493. The cubic root of 2851648 is about 141.8073165226.

The spelling of 2851648 in words is "two million, eight hundred fifty-one thousand, six hundred forty-eight".