3540249 has 6 divisors (see below), whose sum is σ = 5113706. Its totient is φ = 2360160.

The previous prime is 3540247. The next prime is 3540259. The reversal of 3540249 is 9420453.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 915849 = 1620^2 + 957^2 .

It is not a de Polignac number, because 3540249 - 2¹ = 3540247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3540247) 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, 196672 + ... + 196689.

Almost surely, 2^3540249 is an apocalyptic number.

It is an amenable number.

3540249 is a deficient number, since it is larger than the sum of its proper divisors (1573457).

3540249 is a wasteful number, since it uses less digits than its factorization.

3540249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393367 (or 393364 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3540249 is about 1881.5549420625. The cubic root of 3540249 is about 152.4092302261.

The spelling of 3540249 in words is "three million, five hundred forty thousand, two hundred forty-nine".