4212385 has 4 divisors (see below), whose sum is σ = 5054868. Its totient is φ = 3369904.

The previous prime is 4212371. The next prime is 4212401. The reversal of 4212385 is 5832124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 2614689 = 1264^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 4212385 - 2⁵ = 4212353 is a prime.

It is a d-powerful number, because it can be written as 4 + 2⁸ + 1 + 2²² + 3⁷ + 8 + 5⁶ .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421234 + ... + 421243.

It is an arithmetic number, because the mean of its divisors is an integer number (1263717).

Almost surely, 2^4212385 is an apocalyptic number.

It is an amenable number.

4212385 is a deficient number, since it is larger than the sum of its proper divisors (842483).

4212385 is an equidigital number, since it uses as much as digits as its factorization.

4212385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842482.

The product of its digits is 1920, while the sum is 25.

The square root of 4212385 is about 2052.4095595178. The cubic root of 4212385 is about 161.5012987655.

The spelling of 4212385 in words is "four million, two hundred twelve thousand, three hundred eighty-five".