620341660 has 48 divisors (see below), whose sum is σ = 1319141376. Its totient is φ = 245028672.

The previous prime is 620341649. The next prime is 620341661. The reversal of 620341660 is 66143026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620341661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718389 + ... + 719251.

It is an arithmetic number, because the mean of its divisors is an integer number (27482112).

Almost surely, 2^620341660 is an apocalyptic number.

It is an amenable number.

620341660 is an abundant number, since it is smaller than the sum of its proper divisors (698799716).

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

620341660 is a wasteful number, since it uses less digits than its factorization.

620341660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 620341660 is about 24906.6589489638. The cubic root of 620341660 is about 852.8585008187.

Adding to 620341660 its reverse (66143026), we get a palindrome (686484686).

The spelling of 620341660 in words is "six hundred twenty million, three hundred forty-one thousand, six hundred sixty".