620066928 has 80 divisors (see below), whose sum is σ = 1757700000. Its totient is φ = 187180032.

The previous prime is 620066917. The next prime is 620066969. The reversal of 620066928 is 829660026.

620066928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23698 + ... + 42446.

It is an arithmetic number, because the mean of its divisors is an integer number (21971250).

Almost surely, 2^620066928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620066928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878850000).

620066928 is an abundant number, since it is smaller than the sum of its proper divisors (1137633072).

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

620066928 is a wasteful number, since it uses less digits than its factorization.

620066928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18826 (or 18820 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 620066928 is about 24901.1431062913. The cubic root of 620066928 is about 852.7325798224.

The spelling of 620066928 in words is "six hundred twenty million, sixty-six thousand, nine hundred twenty-eight".