3918726 has 48 divisors (see below), whose sum is σ = 10136880. Its totient is φ = 1118880.

The previous prime is 3918697. The next prime is 3918743. The reversal of 3918726 is 6278193.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1906 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (211185).

Almost surely, 2^3918726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3918726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5068440).

3918726 is an abundant number, since it is smaller than the sum of its proper divisors (6218154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3918726 is a wasteful number, since it uses less digits than its factorization.

3918726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1493 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3918726 is about 1979.5772275918. The cubic root of 3918726 is about 157.6576199851.

The spelling of 3918726 in words is "three million, nine hundred eighteen thousand, seven hundred twenty-six".