3842045 has 4 divisors (see below), whose sum is σ = 4610460. Its totient is φ = 3073632.

The previous prime is 3842029. The next prime is 3842077. The reversal of 3842045 is 5402483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5402483 = 1861 ⋅2903.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 2627641 = 1102^2 + 1621^2 .

It is a cyclic number.

It is not a de Polignac number, because 3842045 - 2⁴ = 3842029 is a prime.

It is a super-2 number, since 2×3842045² = 29522619564050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384200 + ... + 384209.

It is an arithmetic number, because the mean of its divisors is an integer number (1152615).

Almost surely, 2^3842045 is an apocalyptic number.

It is an amenable number.

3842045 is a deficient number, since it is larger than the sum of its proper divisors (768415).

3842045 is an equidigital number, since it uses as much as digits as its factorization.

3842045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768414.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3842045 is about 1960.1135171209. The cubic root of 3842045 is about 156.6224989924.

The spelling of 3842045 in words is "three million, eight hundred forty-two thousand, forty-five".