3823840 has 24 divisors (see below), whose sum is σ = 9034200. Its totient is φ = 1529472.

The previous prime is 3823811. The next prime is 3823867. The reversal of 3823840 is 483283.

It is a junction number, because it is equal to n+sod(n) for n = 3823799 and 3823808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11790 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (376425).

Almost surely, 2^3823840 is an apocalyptic number.

It is an amenable number.

3823840 is an abundant number, since it is smaller than the sum of its proper divisors (5210360).

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

3823840 is a wasteful number, since it uses less digits than its factorization.

3823840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23914 (or 23906 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 3823840 is about 1955.4641392774. The cubic root of 3823840 is about 156.3747292063.

The spelling of 3823840 in words is "three million, eight hundred twenty-three thousand, eight hundred forty".