3823640 has 32 divisors (see below), whose sum is σ = 9110880. Its totient is φ = 1439232.

The previous prime is 3823627. The next prime is 3823649. The reversal of 3823640 is 463283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3823649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (284715).

Almost surely, 2^3823640 is an apocalyptic number.

It is an amenable number.

3823640 is an abundant number, since it is smaller than the sum of its proper divisors (5287240).

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

3823640 is a wasteful number, since it uses less digits than its factorization.

3823640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5651 (or 5647 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3823640 is about 1955.4129998545. The cubic root of 3823640 is about 156.3720028465.

The spelling of 3823640 in words is "three million, eight hundred twenty-three thousand, six hundred forty".