3842645 has 8 divisors (see below), whose sum is σ = 4770360. Its totient is φ = 2968000.

The previous prime is 3842627. The next prime is 3842669. The reversal of 3842645 is 5462483.

3842645 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 4 ways, for example, as 244036 + 3598609 = 494^2 + 1897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3842645 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13106 + ... + 13395.

It is an arithmetic number, because the mean of its divisors is an integer number (596295).

Almost surely, 2^3842645 is an apocalyptic number.

It is an amenable number.

3842645 is a deficient number, since it is larger than the sum of its proper divisors (927715).

3842645 is a wasteful number, since it uses less digits than its factorization.

3842645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26535.

The product of its digits is 23040, while the sum is 32.

The square root of 3842645 is about 1960.2665635061. The cubic root of 3842645 is about 156.6306516480.

The spelling of 3842645 in words is "three million, eight hundred forty-two thousand, six hundred forty-five".