3781072 has 20 divisors (see below), whose sum is σ = 7757316. Its totient is φ = 1779200.

The previous prime is 3781007. The next prime is 3781079. The reversal of 3781072 is 2701873.

It is a happy number.

3781072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3013696 + 767376 = 1736^2 + 876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3781072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781079) 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 3 ways as a sum of consecutive naturals, for example, 6679 + ... + 7222.

Almost surely, 2^3781072 is an apocalyptic number.

It is an amenable number.

3781072 is an abundant number, since it is smaller than the sum of its proper divisors (3976244).

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

3781072 is a wasteful number, since it uses less digits than its factorization.

3781072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13926 (or 13920 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 3781072 is about 1944.4978786309. The cubic root of 3781072 is about 155.7895474671.

The spelling of 3781072 in words is "three million, seven hundred eighty-one thousand, seventy-two".