3543040 has 52 divisors (see below), whose sum is σ = 8551404. Its totient is φ = 1409024.

The previous prime is 3543037. The next prime is 3543041. The reversal of 3543040 is 403453.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 1183744 = 1536^2 + 1088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3542999 and 3543017.

It is not an unprimeable number, because it can be changed into a prime (3543041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20394 + ... + 20566.

Almost surely, 2^3543040 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 3543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4275702).

3543040 is an abundant number, since it is smaller than the sum of its proper divisors (5008364).

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

3543040 is an equidigital number, since it uses as much as digits as its factorization.

3543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 180 counting only the distinct ones).

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

The square root of 3543040 is about 1882.2964697412. The cubic root of 3543040 is about 152.4492709527.

Adding to 3543040 its reverse (403453), we get a palindrome (3946493).

The spelling of 3543040 in words is "three million, five hundred forty-three thousand, forty".