2210506 has 8 divisors (see below), whose sum is σ = 3345444. Its totient is φ = 1095360.

The previous prime is 2210503. The next prime is 2210521. The reversal of 2210506 is 6050122.

It is a happy number.

2210506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1934881 + 275625 = 1391^2 + 525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2210506.

It is not an unprimeable number, because it can be changed into a prime (2210503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4665 + ... + 5116.

2^2210506 is an apocalyptic number.

2210506 is a deficient number, since it is larger than the sum of its proper divisors (1134938).

2210506 is a wasteful number, since it uses less digits than its factorization.

2210506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2210506 is about 1486.7770512084. Note that the first 3 decimals coincide. The cubic root of 2210506 is about 130.2658465130.

Adding to 2210506 its reverse (6050122), we get a palindrome (8260628).

It can be divided in two parts, 2210 and 506, that multiplied together give a triangular number (1118260 = T₁₄₉₅).

The spelling of 2210506 in words is "two million, two hundred ten thousand, five hundred six".