20168676 has 60 divisors (see below), whose sum is σ = 57528240. Its totient is φ = 6110640.

The previous prime is 20168657. The next prime is 20168683. The reversal of 20168676 is 67686102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20168676.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 735 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (958804).

Almost surely, 2^20168676 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 20168676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28764120).

20168676 is an abundant number, since it is smaller than the sum of its proper divisors (37359564).

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

20168676 is a wasteful number, since it uses less digits than its factorization.

20168676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20168676 is about 4490.9549095933. The cubic root of 20168676 is about 272.2027215673.

The spelling of 20168676 in words is "twenty million, one hundred sixty-eight thousand, six hundred seventy-six".