2143386 has 24 divisors (see below), whose sum is σ = 5307744. Its totient is φ = 612360.

The previous prime is 2143381. The next prime is 2143391. The reversal of 2143386 is 6833412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2143381) and next prime (2143391).

It is not an unprimeable number, because it can be changed into a prime (2143381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8380 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (221156).

2^2143386 is an apocalyptic number.

2143386 is an abundant number, since it is smaller than the sum of its proper divisors (3164358).

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

2143386 is a wasteful number, since it uses less digits than its factorization.

2143386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026 (or 17023 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2143386 is about 1464.0307373822. The cubic root of 2143386 is about 128.9338041484.

Adding to 2143386 its reverse (6833412), we get a palindrome (8976798).

It can be divided in two parts, 214 and 3386, that added together give a square (3600 = 60²).

The spelling of 2143386 in words is "two million, one hundred forty-three thousand, three hundred eighty-six".