3544240 has 40 divisors (see below), whose sum is σ = 9419040. Its totient is φ = 1214976.

The previous prime is 3544237. The next prime is 3544297. The reversal of 3544240 is 424453.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605 + ... + 3724.

It is an arithmetic number, because the mean of its divisors is an integer number (235476).

Almost surely, 2^3544240 is an apocalyptic number.

It is an amenable number.

3544240 is an abundant number, since it is smaller than the sum of its proper divisors (5874800).

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

3544240 is a wasteful number, since it uses less digits than its factorization.

3544240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349 (or 6343 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 3544240 is about 1882.6152023183. The cubic root of 3544240 is about 152.4664801362.

Adding to 3544240 its reverse (424453), we get a palindrome (3968693).

The spelling of 3544240 in words is "three million, five hundred forty-four thousand, two hundred forty".