3964238 has 8 divisors (see below), whose sum is σ = 6013440. Its totient is φ = 1959760.

The previous prime is 3964237. The next prime is 3964273. The reversal of 3964238 is 8324693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3964198 and 3964207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10958 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (751680).

Almost surely, 2^3964238 is an apocalyptic number.

3964238 is a deficient number, since it is larger than the sum of its proper divisors (2049202).

3964238 is a wasteful number, since it uses less digits than its factorization.

3964238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22362.

The product of its digits is 31104, while the sum is 35.

The square root of 3964238 is about 1991.0394270330. The cubic root of 3964238 is about 158.2656163488.

The spelling of 3964238 in words is "three million, nine hundred sixty-four thousand, two hundred thirty-eight".