620159408 has 40 divisors (see below), whose sum is σ = 1315528896. Its totient is φ = 280872000.

The previous prime is 620159347. The next prime is 620159429. The reversal of 620159408 is 804951026.

620159408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 24903²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43583 + ... + 56033.

Almost surely, 2^620159408 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 620159408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657764448).

620159408 is an abundant number, since it is smaller than the sum of its proper divisors (695369488).

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

620159408 is a wasteful number, since it uses less digits than its factorization.

620159408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753 (or 12747 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 620159408 is about 24902.9999799221. Note that the first 4 decimals coincide. The cubic root of 620159408 is about 852.7749713693.

The spelling of 620159408 in words is "six hundred twenty million, one hundred fifty-nine thousand, four hundred eight".