3840243 has 8 divisors (see below), whose sum is σ = 5585856. Its totient is φ = 2327400.

The previous prime is 3840227. The next prime is 3840253. The reversal of 3840243 is 3420483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3840243 - 2⁴ = 3840227 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58153 + ... + 58218.

It is an arithmetic number, because the mean of its divisors is an integer number (698232).

Almost surely, 2^3840243 is an apocalyptic number.

3840243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3840243 is a deficient number, since it is larger than the sum of its proper divisors (1745613).

3840243 is a wasteful number, since it uses less digits than its factorization.

3840243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116385.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3840243 is about 1959.6537959548. The cubic root of 3840243 is about 156.5980087467.

The spelling of 3840243 in words is "three million, eight hundred forty thousand, two hundred forty-three".