20570682 has 16 divisors (see below), whose sum is σ = 44881632. Its totient is φ = 6233520.

The previous prime is 20570681. The next prime is 20570689. The reversal of 20570682 is 28607502.

It is not an unprimeable number, because it can be changed into a prime (20570681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155773 + ... + 155904.

It is an arithmetic number, because the mean of its divisors is an integer number (2805102).

Almost surely, 2^20570682 is an apocalyptic number.

20570682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20570682 is an abundant number, since it is smaller than the sum of its proper divisors (24310950).

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

20570682 is a wasteful number, since it uses less digits than its factorization.

20570682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311693.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20570682 is about 4535.4913736000. The cubic root of 20570682 is about 273.9993695263. Note that the first 3 decimals are identical.

The spelling of 20570682 in words is "twenty million, five hundred seventy thousand, six hundred eighty-two".