3815842 has 16 divisors (see below), whose sum is σ = 5870592. Its totient is φ = 1859760.

The previous prime is 3815813. The next prime is 3815843. The reversal of 3815842 is 2485183.

3815842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3815843) 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 7 ways as a sum of consecutive naturals, for example, 20992 + ... + 21172.

It is an arithmetic number, because the mean of its divisors is an integer number (366912).

Almost surely, 2^3815842 is an apocalyptic number.

3815842 is a deficient number, since it is larger than the sum of its proper divisors (2054750).

3815842 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (3815841) it forms an eRAP, since the sums of their prime factors are consecutive (392 and 393).

3815842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its digits is 7680, while the sum is 31.

The square root of 3815842 is about 1953.4180300182. The cubic root of 3815842 is about 156.2656278769.

The spelling of 3815842 in words is "three million, eight hundred fifteen thousand, eight hundred forty-two".