3912740 has 48 divisors (see below), whose sum is σ = 8996400. Its totient is φ = 1420800.

The previous prime is 3912721. The next prime is 3912749. The reversal of 3912740 is 472193.

3912740 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 8 ways, for example, as 141376 + 3771364 = 376^2 + 1942^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3912749) 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 in 15 ways as a sum of consecutive naturals, for example, 26186 + ... + 26334.

It is an arithmetic number, because the mean of its divisors is an integer number (187425).

Almost surely, 2^3912740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3912740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4498200).

3912740 is an abundant number, since it is smaller than the sum of its proper divisors (5083660).

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

3912740 is a wasteful number, since it uses less digits than its factorization.

3912740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3912740 is about 1978.0647107716. The cubic root of 3912740 is about 157.5773031123.

The spelling of 3912740 in words is "three million, nine hundred twelve thousand, seven hundred forty".