3945578 has 48 divisors (see below), whose sum is σ = 7852320. Its totient is φ = 1469664.

The previous prime is 3945527. The next prime is 3945607. The reversal of 3945578 is 8755493.

3945578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 24125 + ... + 24287.

It is an arithmetic number, because the mean of its divisors is an integer number (163590).

Almost surely, 2^3945578 is an apocalyptic number.

3945578 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3945578 is a deficient number, since it is larger than the sum of its proper divisors (3906742).

3945578 is a wasteful number, since it uses less digits than its factorization.

3945578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 204 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 3945578 is about 1986.3479050760. The cubic root of 3945578 is about 158.0169025340.

The spelling of 3945578 in words is "three million, nine hundred forty-five thousand, five hundred seventy-eight".