3913238 has 24 divisors (see below), whose sum is σ = 6934392. Its totient is φ = 1651104.

The previous prime is 3913237. The next prime is 3913249. The reversal of 3913238 is 8323193.

It is a self number, because there is not a number n which added to its sum of digits gives 3913238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6881 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (288933).

Almost surely, 2^3913238 is an apocalyptic number.

3913238 is a deficient number, since it is larger than the sum of its proper divisors (3021154).

3913238 is a wasteful number, since it uses less digits than its factorization.

3913238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 629 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 3913238 is about 1978.1905873803. The cubic root of 3913238 is about 157.5839881265.

The spelling of 3913238 in words is "three million, nine hundred thirteen thousand, two hundred thirty-eight".