20829282 has 16 divisors (see below), whose sum is σ = 43851360. Its totient is φ = 6577632.

The previous prime is 20829269. The next prime is 20829313. The reversal of 20829282 is 28292802.

It is an unprimeable number.

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, 91243 + ... + 91470.

It is an arithmetic number, because the mean of its divisors is an integer number (2740710).

Almost surely, 2^20829282 is an apocalyptic number.

20829282 is an abundant number, since it is smaller than the sum of its proper divisors (23022078).

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

20829282 is a wasteful number, since it uses less digits than its factorization.

20829282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182737.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 20829282 is about 4563.9108229675. The cubic root of 20829282 is about 275.1427666410.

The spelling of 20829282 in words is "twenty million, eight hundred twenty-nine thousand, two hundred eighty-two".