3781944 has 32 divisors (see below), whose sum is σ = 10506000. Its totient is φ = 1260576.

The previous prime is 3781909. The next prime is 3781951. The reversal of 3781944 is 4491873.

It is a happy number.

3781944 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 = 3781899 and 3781908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8539 + ... + 8970.

Almost surely, 2^3781944 is an apocalyptic number.

It is an amenable number.

3781944 is an abundant number, since it is smaller than the sum of its proper divisors (6724056).

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

3781944 is a wasteful number, since it uses less digits than its factorization.

3781944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17524 (or 17514 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3781944 is about 1944.7220881144. The cubic root of 3781944 is about 155.8015227343.

The spelling of 3781944 in words is "three million, seven hundred eighty-one thousand, nine hundred forty-four".