620078928 has 120 divisors (see below), whose sum is σ = 1927867680. Its totient is φ = 171037440.

The previous prime is 620078923. The next prime is 620078947. The reversal of 620078928 is 829870026.

It is a happy number.

620078928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 620078928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620078923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63663 + ... + 72753.

It is an arithmetic number, because the mean of its divisors is an integer number (16065564).

Almost surely, 2^620078928 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 620078928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963933840).

620078928 is an abundant number, since it is smaller than the sum of its proper divisors (1307788752).

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

620078928 is a wasteful number, since it uses less digits than its factorization.

620078928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145 (or 9132 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 620078928 is about 24901.3840579194. The cubic root of 620078928 is about 852.7380806936.

The spelling of 620078928 in words is "six hundred twenty million, seventy-eight thousand, nine hundred twenty-eight".