20676608 has 32 divisors (see below), whose sum is σ = 41418120. Its totient is φ = 10321920.

The previous prime is 20676589. The next prime is 20676611. The reversal of 20676608 is 80667602.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32453 + ... + 33083.

Almost surely, 2^20676608 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 20676608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20709060).

20676608 is an abundant number, since it is smaller than the sum of its proper divisors (20741512).

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

20676608 is an frugal number, since it uses more digits than its factorization.

20676608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 20676608 is about 4547.1538350929. The cubic root of 20676608 is about 274.4688723754.

The spelling of 20676608 in words is "twenty million, six hundred seventy-six thousand, six hundred eight".