20765196 has 36 divisors (see below), whose sum is σ = 53018784. Its totient is φ = 6852000.

The previous prime is 20765183. The next prime is 20765201. The reversal of 20765196 is 69156702.

It is a tau number, because it is divible by the number of its divisors (36).

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 20765196.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 781 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (1472744).

Almost surely, 2^20765196 is an apocalyptic number.

It is an amenable number.

20765196 is an abundant number, since it is smaller than the sum of its proper divisors (32253588).

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

20765196 is a wasteful number, since it uses less digits than its factorization.

20765196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 20765196 is about 4556.8844619981. The cubic root of 20765196 is about 274.8602970855.

The spelling of 20765196 in words is "twenty million, seven hundred sixty-five thousand, one hundred ninety-six".