3909224 has 32 divisors (see below), whose sum is σ = 8259840. Its totient is φ = 1718400.

The previous prime is 3909221. The next prime is 3909233. The reversal of 3909224 is 4229093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909221) 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, 2012 + ... + 3444.

It is an arithmetic number, because the mean of its divisors is an integer number (258120).

Almost surely, 2^3909224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3909224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4129920).

3909224 is an abundant number, since it is smaller than the sum of its proper divisors (4350616).

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

3909224 is a wasteful number, since it uses less digits than its factorization.

3909224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3909224 is about 1977.1757635577. The cubic root of 3909224 is about 157.5300891535.

The spelling of 3909224 in words is "three million, nine hundred nine thousand, two hundred twenty-four".