3944680 has 32 divisors (see below), whose sum is σ = 9399240. Its totient is φ = 1484800.

The previous prime is 3944671. The next prime is 3944683. The reversal of 3944680 is 864493.

It can be written as a sum of positive squares in 4 ways, for example, as 3944196 + 484 = 1986^2 + 22^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (3944683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221 + ... + 3580.

Almost surely, 2^3944680 is an apocalyptic number.

It is an amenable number.

3944680 is an abundant number, since it is smaller than the sum of its proper divisors (5454560).

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

3944680 is a wasteful number, since it uses less digits than its factorization.

3944680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 3944680 is about 1986.1218492328. The cubic root of 3944680 is about 158.0049135896.

It can be divided in two parts, 3944 and 680, that added together give a square (4624 = 68²).

The spelling of 3944680 in words is "three million, nine hundred forty-four thousand, six hundred eighty".