3532240 has 40 divisors (see below), whose sum is σ = 8347680. Its totient is φ = 1389696.

The previous prime is 3532237. The next prime is 3532241. The reversal of 3532240 is 422353.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3532241) 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, 5031 + ... + 5689.

It is an arithmetic number, because the mean of its divisors is an integer number (208692).

Almost surely, 2^3532240 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 3532240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4173840).

3532240 is an abundant number, since it is smaller than the sum of its proper divisors (4815440).

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

3532240 is a wasteful number, since it uses less digits than its factorization.

3532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3532240 is about 1879.4254441185. The cubic root of 3532240 is about 152.2942131599.

Adding to 3532240 its reverse (422353), we get a palindrome (3954593).

The spelling of 3532240 in words is "three million, five hundred thirty-two thousand, two hundred forty".