3928120 has 32 divisors (see below), whose sum is σ = 10101600. Its totient is φ = 1346688.

The previous prime is 3928109. The next prime is 3928123. The reversal of 3928120 is 218293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928123) 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, 6735 + ... + 7294.

It is an arithmetic number, because the mean of its divisors is an integer number (315675).

Almost surely, 2^3928120 is an apocalyptic number.

It is an amenable number.

3928120 is an abundant number, since it is smaller than the sum of its proper divisors (6173480).

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

3928120 is a wasteful number, since it uses less digits than its factorization.

3928120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14047 (or 14043 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3928120 is about 1981.9485361633. The cubic root of 3928120 is about 157.7834988044.

The spelling of 3928120 in words is "three million, nine hundred twenty-eight thousand, one hundred twenty".