620422668 has 36 divisors (see below), whose sum is σ = 1571479000. Its totient is φ = 206387136.

The previous prime is 620422657. The next prime is 620422679. The reversal of 620422668 is 866224026.

620422668 is a `hidden beast` number, since 620 + 4 + 2 + 26 + 6 + 8 = 666.

620422668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620422657) and next prime (620422679).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696 + ... + 35232.

Almost surely, 2^620422668 is an apocalyptic number.

It is an amenable number.

620422668 is an abundant number, since it is smaller than the sum of its proper divisors (951056332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620422668 is a wasteful number, since it uses less digits than its factorization.

620422668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35046 (or 35041 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 620422668 is about 24908.2851276438. The cubic root of 620422668 is about 852.8956230255.

The spelling of 620422668 in words is "six hundred twenty million, four hundred twenty-two thousand, six hundred sixty-eight".