3226240 has 48 divisors (see below), whose sum is σ = 7822890. Its totient is φ = 1272320.

The previous prime is 3226231. The next prime is 3226241. The reversal of 3226240 is 426223.

It can be written as a sum of positive squares in only one way, i.e., 2903616 + 322624 = 1704^2 + 568^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3226241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45405 + ... + 45475.

Almost surely, 2^3226240 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 3226240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3911445).

3226240 is an abundant number, since it is smaller than the sum of its proper divisors (4596650).

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

3226240 is an frugal number, since it uses more digits than its factorization.

3226240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3226240 is about 1796.1737109756. The cubic root of 3226240 is about 147.7629514253.

The spelling of 3226240 in words is "three million, two hundred twenty-six thousand, two hundred forty".