3920244 has 12 divisors (see below), whose sum is σ = 9147264. Its totient is φ = 1306744.

The previous prime is 3920243. The next prime is 3920263. The reversal of 3920244 is 4420293.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920243) 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 3 ways as a sum of consecutive naturals, for example, 163332 + ... + 163355.

It is an arithmetic number, because the mean of its divisors is an integer number (762272).

Almost surely, 2^3920244 is an apocalyptic number.

It is an amenable number.

3920244 is an abundant number, since it is smaller than the sum of its proper divisors (5227020).

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

3920244 is a wasteful number, since it uses less digits than its factorization.

3920244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326694 (or 326692 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3920244 is about 1979.9606056687. The cubic root of 3920244 is about 157.6779746762.

The spelling of 3920244 in words is "three million, nine hundred twenty thousand, two hundred forty-four".