3540241 has 4 divisors (see below), whose sum is σ = 3607092. Its totient is φ = 3473392.

The previous prime is 3540223. The next prime is 3540247. The reversal of 3540241 is 1420453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1420453 = 53 ⋅26801.

It can be written as a sum of positive squares in 2 ways, for example, as 1635841 + 1904400 = 1279^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 3540241 - 2¹³ = 3532049 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 33346 + ... + 33451.

It is an arithmetic number, because the mean of its divisors is an integer number (901773).

Almost surely, 2^3540241 is an apocalyptic number.

It is an amenable number.

3540241 is a deficient number, since it is larger than the sum of its proper divisors (66851).

3540241 is an equidigital number, since it uses as much as digits as its factorization.

3540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66850.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3540241 is about 1881.5528161601. The cubic root of 3540241 is about 152.4091154249.

Adding to 3540241 its reverse (1420453), we get a palindrome (4960694).

It can be divided in two parts, 354024 and 1, that added together give a square (354025 = 595²).

The spelling of 3540241 in words is "three million, five hundred forty thousand, two hundred forty-one".