3855424 has 28 divisors (see below), whose sum is σ = 7735824. Its totient is φ = 1906304.

The previous prime is 3855419. The next prime is 3855431. The reversal of 3855424 is 4245583.

It is an Ulam 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, 6567 + ... + 7129.

Almost surely, 2^3855424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3855424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3867912).

3855424 is an abundant number, since it is smaller than the sum of its proper divisors (3880400).

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

3855424 is a wasteful number, since it uses less digits than its factorization.

3855424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 672 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 3855424 is about 1963.5233637520. The cubic root of 3855424 is about 156.8040884676.

The spelling of 3855424 in words is "three million, eight hundred fifty-five thousand, four hundred twenty-four".