20202966 has 128 divisors (see below), whose sum is σ = 56448000. Its totient is φ = 5225472.

The previous prime is 20202961. The next prime is 20202989. The reversal of 20202966 is 66920202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 208230 + ... + 208326.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

Almost surely, 2^20202966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28224000).

20202966 is an abundant number, since it is smaller than the sum of its proper divisors (36245034).

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

20202966 is a wasteful number, since it uses less digits than its factorization.

20202966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20202966 is about 4494.7709619067. The cubic root of 20202966 is about 272.3568970594.

The spelling of 20202966 in words is "twenty million, two hundred two thousand, nine hundred sixty-six".