3820425 has 48 divisors (see below), whose sum is σ = 7618560. Its totient is φ = 1650240.

The previous prime is 3820423. The next prime is 3820429. The reversal of 3820425 is 5240283.

3820425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3820425 - 2¹ = 3820423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3820395 and 3820404.

It is not an unprimeable number, because it can be changed into a prime (3820423) 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 47 ways as a sum of consecutive naturals, for example, 9784 + ... + 10166.

It is an arithmetic number, because the mean of its divisors is an integer number (158720).

Almost surely, 2^3820425 is an apocalyptic number.

3820425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3820425 is a deficient number, since it is larger than the sum of its proper divisors (3798135).

3820425 is a wasteful number, since it uses less digits than its factorization.

3820425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3820425 is about 1954.5907500037. The cubic root of 3820425 is about 156.3281635591.

The spelling of 3820425 in words is "three million, eight hundred twenty thousand, four hundred twenty-five".