20020608 has 80 divisors (see below), whose sum is σ = 59611860. Its totient is φ = 6670080.

The previous prime is 20020607. The next prime is 20020619. The reversal of 20020608 is 80602002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9403 + ... + 11333.

Almost surely, 2^20020608 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 20020608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29805930).

20020608 is an abundant number, since it is smaller than the sum of its proper divisors (39591252).

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

20020608 is an equidigital number, since it uses as much as digits as its factorization.

20020608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20020608 is about 4474.4394062273. The cubic root of 20020608 is about 271.5349608531.

The spelling of 20020608 in words is "twenty million, twenty thousand, six hundred eight".