3540216 has 32 divisors (see below), whose sum is σ = 9372240. Its totient is φ = 1110528.

The previous prime is 3540203. The next prime is 3540223. The reversal of 3540216 is 6120453.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3540192 and 3540201.

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, 3931 + ... + 4746.

Almost surely, 2^3540216 is an apocalyptic number.

It is an amenable number.

3540216 is an abundant number, since it is smaller than the sum of its proper divisors (5832024).

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

3540216 is a wasteful number, since it uses less digits than its factorization.

3540216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703 (or 8699 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3540216 is about 1881.5461726995. The cubic root of 3540216 is about 152.4087566699.

Adding to 3540216 its reverse (6120453), we get a palindrome (9660669).

The spelling of 3540216 in words is "three million, five hundred forty thousand, two hundred sixteen".