3944258 has 4 divisors (see below), whose sum is σ = 5916390. Its totient is φ = 1972128.

The previous prime is 3944257. The next prime is 3944309. The reversal of 3944258 is 8524493.

3944258 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: 8524493 = 2137 ⋅3989.

It can be written as a sum of positive squares in only one way, i.e., 3892729 + 51529 = 1973^2 + 227^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944251) 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 as a sum of consecutive naturals, namely, 986063 + ... + 986066.

Almost surely, 2^3944258 is an apocalyptic number.

3944258 is a deficient number, since it is larger than the sum of its proper divisors (1972132).

3944258 is a wasteful number, since it uses less digits than its factorization.

3944258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972131.

The product of its digits is 34560, while the sum is 35.

The square root of 3944258 is about 1986.0156092035. The cubic root of 3944258 is about 157.9992789584. Note that the first 3 decimals are identical.

The spelling of 3944258 in words is "three million, nine hundred forty-four thousand, two hundred fifty-eight".