3563240 has 32 divisors (see below), whose sum is σ = 8073000. Its totient is φ = 1415424.

The previous prime is 3563237. The next prime is 3563249. The reversal of 3563240 is 423653.

It can be written as a sum of positive squares in 4 ways, for example, as 3161284 + 401956 = 1778^2 + 634^2 .

It is not an unprimeable number, because it can be changed into a prime (3563249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8966 + ... + 9354.

Almost surely, 2^3563240 is an apocalyptic number.

It is an amenable number.

3563240 is an abundant number, since it is smaller than the sum of its proper divisors (4509760).

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

3563240 is a wasteful number, since it uses less digits than its factorization.

3563240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3563240 is about 1887.6546294277. The cubic root of 3563240 is about 152.7384427170.

Adding to 3563240 its reverse (423653), we get a palindrome (3986893).

The spelling of 3563240 in words is "three million, five hundred sixty-three thousand, two hundred forty".