3520226 has 4 divisors (see below), whose sum is σ = 5280342. Its totient is φ = 1760112.

The previous prime is 3520211. The next prime is 3520229. The reversal of 3520226 is 6220253.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6220253 = 13 ⋅478481.

It can be written as a sum of positive squares in only one way, i.e., 2719201 + 801025 = 1649^2 + 895^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3520198 and 3520207.

It is not an unprimeable number, because it can be changed into a prime (3520229) 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 as a sum of consecutive naturals, namely, 880055 + ... + 880058.

Almost surely, 2^3520226 is an apocalyptic number.

3520226 is a deficient number, since it is larger than the sum of its proper divisors (1760116).

3520226 is a wasteful number, since it uses less digits than its factorization.

3520226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760115.

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

The square root of 3520226 is about 1876.2265321650. The cubic root of 3520226 is about 152.1213539186.

Adding to 3520226 its reverse (6220253), we get a palindrome (9740479).

The spelling of 3520226 in words is "three million, five hundred twenty thousand, two hundred twenty-six".