2143568 has 20 divisors (see below), whose sum is σ = 4746720. Its totient is φ = 918624.

The previous prime is 2143567. The next prime is 2143571. The reversal of 2143568 is 8653412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143567) 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, 9458 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (237336).

2^2143568 is an apocalyptic number.

2143568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2143568 is an abundant number, since it is smaller than the sum of its proper divisors (2603152).

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

2143568 is a wasteful number, since it uses less digits than its factorization.

2143568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19154 (or 19148 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 2143568 is about 1464.0928932277. The cubic root of 2143568 is about 128.9374534037.

The spelling of 2143568 in words is "two million, one hundred forty-three thousand, five hundred sixty-eight".