3813140 has 12 divisors (see below), whose sum is σ = 8007636. Its totient is φ = 1525248.

The previous prime is 3813113. The next prime is 3813143. The reversal of 3813140 is 413183.

It is a happy number.

3813140 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 478864 + 3334276 = 692^2 + 1826^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 190657 = 3813140 / (3 + 8 + 1 + 3 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813143) 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, 95309 + ... + 95348.

It is an arithmetic number, because the mean of its divisors is an integer number (667303).

Almost surely, 2^3813140 is an apocalyptic number.

It is an amenable number.

3813140 is an abundant number, since it is smaller than the sum of its proper divisors (4194496).

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

3813140 is a wasteful number, since it uses less digits than its factorization.

3813140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190666 (or 190664 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3813140 is about 1952.7262993057. The cubic root of 3813140 is about 156.2287352394.

The spelling of 3813140 in words is "three million, eight hundred thirteen thousand, one hundred forty".