3540244 has 6 divisors (see below), whose sum is σ = 6195434. Its totient is φ = 1770120.

The previous prime is 3540223. The next prime is 3540247. The reversal of 3540244 is 4420453.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3104644 + 435600 = 1762^2 + 660^2 .

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 as a sum of consecutive naturals, namely, 442527 + ... + 442534.

Almost surely, 2^3540244 is an apocalyptic number.

It is an amenable number.

3540244 is a deficient number, since it is larger than the sum of its proper divisors (2655190).

3540244 is a wasteful number, since it uses less digits than its factorization.

3540244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885065 (or 885063 counting only the distinct ones).

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

The square root of 3540244 is about 1881.5536133738. The cubic root of 3540244 is about 152.4091584753.

Adding to 3540244 its reverse (4420453), we get a palindrome (7960697).

The spelling of 3540244 in words is "three million, five hundred forty thousand, two hundred forty-four".