3781146 has 16 divisors (see below), whose sum is σ = 7687008. Its totient is φ = 1239600.

The previous prime is 3781121. The next prime is 3781147. The reversal of 3781146 is 6411873.

It is a happy number.

3781146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3781147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4800 + ... + 5531.

It is an arithmetic number, because the mean of its divisors is an integer number (480438).

Almost surely, 2^3781146 is an apocalyptic number.

3781146 is an abundant number, since it is smaller than the sum of its proper divisors (3905862).

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

3781146 is a wasteful number, since it uses less digits than its factorization.

3781146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397.

The product of its digits is 4032, while the sum is 30.

The square root of 3781146 is about 1944.5169065863. The cubic root of 3781146 is about 155.7905637883.

The spelling of 3781146 in words is "three million, seven hundred eighty-one thousand, one hundred forty-six".