620378266 has 8 divisors (see below), whose sum is σ = 962656020. Its totient is φ = 299492928.

The previous prime is 620378251. The next prime is 620378279. The reversal of 620378266 is 662873026.

620378266 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 609349225 + 11029041 = 24685^2 + 3321^2 .

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

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, 5348031 + ... + 5348146.

Almost surely, 2^620378266 is an apocalyptic number.

620378266 is a deficient number, since it is larger than the sum of its proper divisors (342277754).

620378266 is a wasteful number, since it uses less digits than its factorization.

620378266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696208.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 620378266 is about 24907.3938018413. The cubic root of 620378266 is about 852.8752760498.

The spelling of 620378266 in words is "six hundred twenty million, three hundred seventy-eight thousand, two hundred sixty-six".