3928446 has 32 divisors (see below), whose sum is σ = 9112320. Its totient is φ = 1252152.

The previous prime is 3928429. The next prime is 3928447. The reversal of 3928446 is 6448293.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3928446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (284760).

Almost surely, 2^3928446 is an apocalyptic number.

3928446 is an abundant number, since it is smaller than the sum of its proper divisors (5183874).

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

3928446 is a wasteful number, since it uses less digits than its factorization.

3928446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197 (or 3191 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 3928446 is about 1982.0307767540. The cubic root of 3928446 is about 157.7878635724.

The spelling of 3928446 in words is "three million, nine hundred twenty-eight thousand, four hundred forty-six".