3918416 has 10 divisors (see below), whose sum is σ = 7591962. Its totient is φ = 1959200.

The previous prime is 3918413. The next prime is 3918443. The reversal of 3918416 is 6148193.

It is a happy number.

3918416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2572816 + 1345600 = 1604^2 + 1160^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918413) 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, 122435 + ... + 122466.

Almost surely, 2^3918416 is an apocalyptic number.

It is an amenable number.

3918416 is a deficient number, since it is larger than the sum of its proper divisors (3673546).

3918416 is a wasteful number, since it uses less digits than its factorization.

3918416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244909 (or 244903 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 3918416 is about 1979.4989264963. The cubic root of 3918416 is about 157.6534625837.

It can be divided in two parts, 3918 and 416, that added together give a palindrome (4334).

The spelling of 3918416 in words is "three million, nine hundred eighteen thousand, four hundred sixteen".