3533240 has 32 divisors (see below), whose sum is σ = 8370000. Its totient is φ = 1338624.

The previous prime is 3533239. The next prime is 3533293. The reversal of 3533240 is 423353.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a d-powerful number, because it can be written as 3² + 5⁹ + 3⁴ + 3¹² + 2³ + 4¹⁰ + 0 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1565 + ... + 3084.

Almost surely, 2^3533240 is an apocalyptic number.

It is an amenable number.

3533240 is an abundant number, since it is smaller than the sum of its proper divisors (4836760).

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

3533240 is a wasteful number, since it uses less digits than its factorization.

3533240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 3533240 is about 1879.6914640440. The cubic root of 3533240 is about 152.3085836296.

Adding to 3533240 its reverse (423353), we get a palindrome (3956593).

It can be divided in two parts, 3533 and 240, that added together give a palindrome (3773).

The spelling of 3533240 in words is "three million, five hundred thirty-three thousand, two hundred forty".