3840726 has 8 divisors (see below), whose sum is σ = 7681464. Its totient is φ = 1280240.

The previous prime is 3840721. The next prime is 3840737. The reversal of 3840726 is 6270483.

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

3840726 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3840693 and 3840702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840721) 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 3 ways as a sum of consecutive naturals, for example, 320055 + ... + 320066.

It is an arithmetic number, because the mean of its divisors is an integer number (960183).

Almost surely, 2^3840726 is an apocalyptic number.

3840726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3840726 is a wasteful number, since it uses less digits than its factorization.

3840726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640126.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 3840726 is about 1959.7770281336. Note that the first 3 decimals coincide. The cubic root of 3840726 is about 156.6045737537.

The spelling of 3840726 in words is "three million, eight hundred forty thousand, seven hundred twenty-six".