2143648 has 24 divisors (see below), whose sum is σ = 4545828. Its totient is φ = 989184.

The previous prime is 2143627. The next prime is 2143667. The reversal of 2143648 is 8463412.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 35344 = 1452^2 + 188^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161 + ... + 2992.

2^2143648 is an apocalyptic number.

It is an amenable number.

2143648 is an abundant number, since it is smaller than the sum of its proper divisors (2402180).

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

2143648 is a wasteful number, since it uses less digits than its factorization.

2143648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176 (or 5168 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 2143648 is about 1464.1202136437. The cubic root of 2143648 is about 128.9390574066.

It can be divided in two parts, 2 and 143648, that multiplied together give a square (287296 = 536²).

The spelling of 2143648 in words is "two million, one hundred forty-three thousand, six hundred forty-eight".