3820229 has 4 divisors (see below), whose sum is σ = 4365984. Its totient is φ = 3274476.

The previous prime is 3820181. The next prime is 3820237. The reversal of 3820229 is 9220283.

3820229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3820229 - 2¹² = 3816133 is a prime.

It is a super-2 number, since 2×3820229² = 29188299224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3820198 and 3820207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820259) 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, 272867 + ... + 272880.

It is an arithmetic number, because the mean of its divisors is an integer number (1091496).

Almost surely, 2^3820229 is an apocalyptic number.

It is an amenable number.

3820229 is a deficient number, since it is larger than the sum of its proper divisors (545755).

3820229 is an equidigital number, since it uses as much as digits as its factorization.

3820229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545754.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3820229 is about 1954.5406109877. The cubic root of 3820229 is about 156.3254901354.

The spelling of 3820229 in words is "three million, eight hundred twenty thousand, two hundred twenty-nine".