5243842 has 4 divisors (see below), whose sum is σ = 7865766. Its totient is φ = 2621920.

The previous prime is 5243831. The next prime is 5243869. The reversal of 5243842 is 2483425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5148361 + 95481 = 2269^2 + 309^2 .

It is a d-powerful number, because it can be written as 5⁴ + 2²⁰ + 4³ + 3² + 8 + 4⁴ + 2²² .

It is a self number, because there is not a number n which added to its sum of digits gives 5243842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310959 + ... + 1310962.

Almost surely, 2^5243842 is an apocalyptic number.

5243842 is a deficient number, since it is larger than the sum of its proper divisors (2621924).

5243842 is a wasteful number, since it uses less digits than its factorization.

5243842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621923.

The product of its digits is 7680, while the sum is 28.

The square root of 5243842 is about 2289.9436674294. The cubic root of 5243842 is about 173.7333520961.

The spelling of 5243842 in words is "five million, two hundred forty-three thousand, eight hundred forty-two".