3945241 has 4 divisors (see below), whose sum is σ = 4177332. Its totient is φ = 3713152.

The previous prime is 3945233. The next prime is 3945287. The reversal of 3945241 is 1425493.

3945241 = 324² + 325² + ... + 357².

3945241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1425493 = 43 ⋅33151.

It can be written as a sum of positive squares in 2 ways, for example, as 1971216 + 1974025 = 1404^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 3945241 - 2³ = 3945233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945341) 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 3 ways as a sum of consecutive naturals, for example, 116020 + ... + 116053.

It is an arithmetic number, because the mean of its divisors is an integer number (1044333).

Almost surely, 2^3945241 is an apocalyptic number.

3945241 is the 1405-th centered square number.

It is an amenable number.

3945241 is a deficient number, since it is larger than the sum of its proper divisors (232091).

3945241 is a wasteful number, since it uses less digits than its factorization.

3945241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232090.

The product of its digits is 4320, while the sum is 28.

The square root of 3945241 is about 1986.2630742175. The cubic root of 3945241 is about 158.0124035554.

It can be divided in two parts, 39452 and 41, that added together give a palindrome (39493).

The spelling of 3945241 in words is "three million, nine hundred forty-five thousand, two hundred forty-one".