20782092 has 24 divisors (see below), whose sum is σ = 51344496. Its totient is φ = 6519808.

The previous prime is 20782081. The next prime is 20782093. The reversal of 20782092 is 29028702.

It is not an unprimeable number, because it can be changed into a prime (20782093) 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 7 ways as a sum of consecutive naturals, for example, 50733 + ... + 51140.

It is an arithmetic number, because the mean of its divisors is an integer number (2139354).

Almost surely, 2^20782092 is an apocalyptic number.

It is an amenable number.

20782092 is an abundant number, since it is smaller than the sum of its proper divisors (30562404).

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

20782092 is a wasteful number, since it uses less digits than its factorization.

20782092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101897 (or 101895 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 20782092 is about 4558.7379832581. The cubic root of 20782092 is about 274.9348253262.

The spelling of 20782092 in words is "twenty million, seven hundred eighty-two thousand, ninety-two".