3562220 has 24 divisors (see below), whose sum is σ = 7519344. Its totient is φ = 1417536.

The previous prime is 3562219. The next prime is 3562259. The reversal of 3562220 is 222653.

It is a happy number.

It is a super-2 number, since 2×3562220² = 25378822656800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3562192 and 3562201.

It is an unprimeable number.

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, 5219 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (313306).

Almost surely, 2^3562220 is an apocalyptic number.

It is an amenable number.

3562220 is an abundant number, since it is smaller than the sum of its proper divisors (3957124).

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

3562220 is a wasteful number, since it uses less digits than its factorization.

3562220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3562220 is about 1887.3844335482. The cubic root of 3562220 is about 152.7238672109.

Adding to 3562220 its reverse (222653), we get a palindrome (3784873).

The spelling of 3562220 in words is "three million, five hundred sixty-two thousand, two hundred twenty".