3728250 has 48 divisors (see below), whose sum is σ = 10087272. Its totient is φ = 993600.

The previous prime is 3728243. The next prime is 3728251. The reversal of 3728250 is 528273.

It can be written as a sum of positive squares in 4 ways, for example, as 793881 + 2934369 = 891^2 + 1713^2 .

It is not an unprimeable number, because it can be changed into a prime (3728251) 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 23 ways as a sum of consecutive naturals, for example, 1422 + ... + 3078.

Almost surely, 2^3728250 is an apocalyptic number.

3728250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3728250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5043636).

3728250 is an abundant number, since it is smaller than the sum of its proper divisors (6359022).

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

3728250 is a wasteful number, since it uses less digits than its factorization.

3728250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3728250 is about 1930.8676806037. The cubic root of 3728250 is about 155.0606769031.

The spelling of 3728250 in words is "three million, seven hundred twenty-eight thousand, two hundred fifty".