20122850 has 24 divisors (see below), whose sum is σ = 40832208. Its totient is φ = 7317200.

The previous prime is 20122831. The next prime is 20122853. The reversal of 20122850 is 5822102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20122853) 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 11 ways as a sum of consecutive naturals, for example, 17744 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (1701342).

Almost surely, 2^20122850 is an apocalyptic number.

20122850 is an abundant number, since it is smaller than the sum of its proper divisors (20709358).

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

20122850 is a wasteful number, since it uses less digits than its factorization.

20122850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36610 (or 36605 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 20122850 is about 4485.8499751998. The cubic root of 20122850 is about 271.9964045805.

Adding to 20122850 its reverse (5822102), we get a palindrome (25944952).

The spelling of 20122850 in words is "twenty million, one hundred twenty-two thousand, eight hundred fifty".