620505226 has 8 divisors (see below), whose sum is σ = 1015372224. Its totient is φ = 282047820.

The previous prime is 620505209. The next prime is 620505239. The reversal of 620505226 is 622505026.

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

It is a super-3 number, since 3×620505226³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 620505194 and 620505203.

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 3 ways as a sum of consecutive naturals, for example, 14102370 + ... + 14102413.

It is an arithmetic number, because the mean of its divisors is an integer number (126921528).

Almost surely, 2^620505226 is an apocalyptic number.

620505226 is a deficient number, since it is larger than the sum of its proper divisors (394866998).

620505226 is a wasteful number, since it uses less digits than its factorization.

620505226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28204796.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 620505226 is about 24909.9423122576. The cubic root of 620505226 is about 852.9334522010.

It can be divided in two parts, 62050 and 5226, that added together give a palindrome (67276).

The spelling of 620505226 in words is "six hundred twenty million, five hundred five thousand, two hundred twenty-six".