3944250 has 48 divisors (see below), whose sum is σ = 10671336. Its totient is φ = 1051200.

The previous prime is 3944249. The next prime is 3944251. The reversal of 3944250 is 524493.

It is an interprime number because it is at equal distance from previous prime (3944249) and next prime (3944251).

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 3674889 = 519^2 + 1917^2 .

It is not an unprimeable number, because it can be changed into a prime (3944251) 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, 1374 + ... + 3126.

Almost surely, 2^3944250 is an apocalyptic number.

3944250 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 3944250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5335668).

3944250 is an abundant number, since it is smaller than the sum of its proper divisors (6727086).

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

3944250 is a wasteful number, since it uses less digits than its factorization.

3944250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3944250 is about 1986.0135951196. The cubic root of 3944250 is about 157.9991721369. Note that the first 3 decimals are identical.

The spelling of 3944250 in words is "three million, nine hundred forty-four thousand, two hundred fifty".