243862 has 4 divisors (see below), whose sum is σ = 365796. Its totient is φ = 121930.

The previous prime is 243857. The next prime is 243863. The reversal of 243862 is 268342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268342 = 2 ⋅134171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60964 + ... + 60967.

It is an arithmetic number, because the mean of its divisors is an integer number (91449).

2²⁴³⁸⁶² is an apocalyptic number.

243862 is a deficient number, since it is larger than the sum of its proper divisors (121934).

243862 is a wasteful number, since it uses less digits than its factorization.

243862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121933.

The product of its digits is 2304, while the sum is 25.

The square root of 243862 is about 493.8238552359. The cubic root of 243862 is about 62.4762149495.

It can be divided in two parts, 2438 and 62, that added together give a square (2500 = 50²).

The spelling of 243862 in words is "two hundred forty-three thousand, eight hundred sixty-two".