3855744 has 48 divisors (see below), whose sum is σ = 11098620. Its totient is φ = 1284864.

The previous prime is 3855703. The next prime is 3855757. The reversal of 3855744 is 4475583.

3855744 is a `hidden beast` number, since 3 + 85 + 574 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3855699 and 3855708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522 + ... + 2825.

Almost surely, 2^3855744 is an apocalyptic number.

It is an amenable number.

3855744 is an abundant number, since it is smaller than the sum of its proper divisors (7242876).

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

3855744 is a wasteful number, since it uses less digits than its factorization.

3855744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367 (or 3352 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 3855744 is about 1963.6048482319. The cubic root of 3855744 is about 156.8084265914.

The spelling of 3855744 in words is "three million, eight hundred fifty-five thousand, seven hundred forty-four".