620210106 has 24 divisors (see below), whose sum is σ = 1346004660. Its totient is φ = 206395776.

The previous prime is 620210093. The next prime is 620210161. The reversal of 620210106 is 601012026.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 582498225 + 37711881 = 24135^2 + 6141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17071 + ... + 39138.

Almost surely, 2^620210106 is an apocalyptic number.

620210106 is an abundant number, since it is smaller than the sum of its proper divisors (725794554).

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

620210106 is a wasteful number, since it uses less digits than its factorization.

620210106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56830 (or 56827 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 620210106 is about 24904.0178686091. The cubic root of 620210106 is about 852.7982088395.

The spelling of 620210106 in words is "six hundred twenty million, two hundred ten thousand, one hundred six".