620030308 has 6 divisors (see below), whose sum is σ = 1085053046. Its totient is φ = 310015152.

The previous prime is 620030303. The next prime is 620030309. The reversal of 620030308 is 803030026.

620030308 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 only one way, i.e., 554225764 + 65804544 = 23542^2 + 8112^2 .

It is not an unprimeable number, because it can be changed into a prime (620030303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77503785 + ... + 77503792.

Almost surely, 2^620030308 is an apocalyptic number.

It is an amenable number.

620030308 is a deficient number, since it is larger than the sum of its proper divisors (465022738).

620030308 is a wasteful number, since it uses less digits than its factorization.

620030308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155007581 (or 155007579 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 620030308 is about 24900.4077878255. The cubic root of 620030308 is about 852.7157925583.

The spelling of 620030308 in words is "six hundred twenty million, thirty thousand, three hundred eight".