620655060 has 48 divisors (see below), whose sum is σ = 1739388672. Its totient is φ = 165360000.

The previous prime is 620655041. The next prime is 620655067. The reversal of 620655060 is 60556026.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620655067) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 74085 + ... + 82035.

It is an arithmetic number, because the mean of its divisors is an integer number (36237264).

Almost surely, 2^620655060 is an apocalyptic number.

620655060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620655060 is an abundant number, since it is smaller than the sum of its proper divisors (1118733612).

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

620655060 is a wasteful number, since it uses less digits than its factorization.

620655060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 620655060 is about 24912.9496447129. The cubic root of 620655060 is about 853.0020995657.

The spelling of 620655060 in words is "six hundred twenty million, six hundred fifty-five thousand, sixty".