620320662 has 24 divisors (see below), whose sum is σ = 1447415424. Its totient is φ = 190867824.

The previous prime is 620320621. The next prime is 620320691. The reversal of 620320662 is 266023026.

It is a happy number.

620320662 is a `hidden beast` number, since 620 + 32 + 0 + 6 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1325238 + ... + 1325705.

It is an arithmetic number, because the mean of its divisors is an integer number (60308976).

Almost surely, 2^620320662 is an apocalyptic number.

620320662 is an abundant number, since it is smaller than the sum of its proper divisors (827094762).

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

620320662 is a wasteful number, since it uses less digits than its factorization.

620320662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650964 (or 2650961 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 620320662 is about 24906.2374115401. The cubic root of 620320662 is about 852.8488778823.

Adding to 620320662 its reverse (266023026), we get a palindrome (886343688).

The spelling of 620320662 in words is "six hundred twenty million, three hundred twenty thousand, six hundred sixty-two".