620776228 has 12 divisors (see below), whose sum is σ = 1089227440. Its totient is φ = 309568392.

The previous prime is 620776213. The next prime is 620776231. The reversal of 620776228 is 822677026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203226 + ... + 206257.

Almost surely, 2^620776228 is an apocalyptic number.

It is an amenable number.

620776228 is a deficient number, since it is larger than the sum of its proper divisors (468451212).

620776228 is a wasteful number, since it uses less digits than its factorization.

620776228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409866 (or 409864 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 620776228 is about 24915.3813536939. The cubic root of 620776228 is about 853.0576053476.

The spelling of 620776228 in words is "six hundred twenty million, seven hundred seventy-six thousand, two hundred twenty-eight".