620761228 has 12 divisors (see below), whose sum is σ = 1106829360. Its totient is φ = 304524272.

The previous prime is 620761199. The next prime is 620761259. The reversal of 620761228 is 822167026.

It is a junction number, because it is equal to n+sod(n) for n = 620761193 and 620761202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463848 + ... + 1464271.

It is an arithmetic number, because the mean of its divisors is an integer number (92235780).

Almost surely, 2^620761228 is an apocalyptic number.

It is an amenable number.

620761228 is a deficient number, since it is larger than the sum of its proper divisors (486068132).

620761228 is a wasteful number, since it uses less digits than its factorization.

620761228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928176 (or 2928174 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 620761228 is about 24915.0803330031. The cubic root of 620761228 is about 853.0507343977.

The spelling of 620761228 in words is "six hundred twenty million, seven hundred sixty-one thousand, two hundred twenty-eight".