620068820 has 48 divisors (see below), whose sum is σ = 1536181248. Its totient is φ = 205735680.

The previous prime is 620068811. The next prime is 620068837. The reversal of 620068820 is 28860026.

It is a happy number.

620068820 is a modest number, since divided by 68820 gives 620 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67097 + ... + 75776.

It is an arithmetic number, because the mean of its divisors is an integer number (32003776).

Almost surely, 2^620068820 is an apocalyptic number.

It is an amenable number.

620068820 is an abundant number, since it is smaller than the sum of its proper divisors (916112428).

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

620068820 is a wasteful number, since it uses less digits than its factorization.

620068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142920 (or 142918 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 620068820 is about 24901.1810964862. The cubic root of 620068820 is about 852.7334471311.

The spelling of 620068820 in words is "six hundred twenty million, sixty-eight thousand, eight hundred twenty".