3821130 has 24 divisors (see below), whose sum is σ = 9935172. Its totient is φ = 1018944.

The previous prime is 3821123. The next prime is 3821131. The reversal of 3821130 is 311283.

3821130 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 3697929 + 123201 = 1923^2 + 351^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3821131) 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 11 ways as a sum of consecutive naturals, for example, 21139 + ... + 21318.

Almost surely, 2^3821130 is an apocalyptic number.

3821130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3821130 is an abundant number, since it is smaller than the sum of its proper divisors (6114042).

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

3821130 is a wasteful number, since it uses less digits than its factorization.

3821130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42470 (or 42467 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3821130 is about 1954.7710863423. The cubic root of 3821130 is about 156.3377789445.

The spelling of 3821130 in words is "three million, eight hundred twenty-one thousand, one hundred thirty".