3928250 has 32 divisors (see below), whose sum is σ = 7750080. Its totient is φ = 1486800.

The previous prime is 3928247. The next prime is 3928259. The reversal of 3928250 is 528293.

It is a super-2 number, since 2×3928250² = 30862296125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3928259) 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, 4337 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (242190).

Almost surely, 2^3928250 is an apocalyptic number.

3928250 is a deficient number, since it is larger than the sum of its proper divisors (3821830).

3928250 is a wasteful number, since it uses less digits than its factorization.

3928250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3928250 is about 1981.9813319000. The cubic root of 3928250 is about 157.7852393850.

The spelling of 3928250 in words is "three million, nine hundred twenty-eight thousand, two hundred fifty".