2143860 has 24 divisors (see below), whose sum is σ = 6002976. Its totient is φ = 571680.

The previous prime is 2143859. The next prime is 2143861. The reversal of 2143860 is 683412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2143859) and next prime (2143861).

It is a super-3 number, since 3×2143860³ = 29560414442833368000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4² + 3³ + 8 + 6⁶ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2143860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17806 + ... + 17925.

It is an arithmetic number, because the mean of its divisors is an integer number (250124).

2^2143860 is an apocalyptic number.

2143860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143860 is an abundant number, since it is smaller than the sum of its proper divisors (3859116).

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

2143860 is a wasteful number, since it uses less digits than its factorization.

2143860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35743 (or 35741 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2143860 is about 1464.1926102805. The cubic root of 2143860 is about 128.9433078213.

It can be divided in two parts, 2143 and 860, that added together give a palindrome (3003).

The spelling of 2143860 in words is "two million, one hundred forty-three thousand, eight hundred sixty".