620135226 has 24 divisors (see below), whose sum is σ = 1355957460. Its totient is φ = 204814656.

The previous prime is 620135213. The next prime is 620135233. The reversal of 620135226 is 622531026.

620135226 is a `hidden beast` number, since 620 + 1 + 35 + 2 + 2 + 6 = 666.

620135226 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 573554601 + 46580625 = 23949^2 + 6825^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 620135226.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156075 + ... + 159998.

Almost surely, 2^620135226 is an apocalyptic number.

620135226 is an abundant number, since it is smaller than the sum of its proper divisors (735822234).

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

620135226 is a wasteful number, since it uses less digits than its factorization.

620135226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316190 (or 316187 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 620135226 is about 24902.5144513561. The cubic root of 620135226 is about 852.7638870834.

The spelling of 620135226 in words is "six hundred twenty million, one hundred thirty-five thousand, two hundred twenty-six".