20024212 has 12 divisors (see below), whose sum is σ = 37738036. Its totient is φ = 9241920.

The previous prime is 20024177. The next prime is 20024219. The reversal of 20024212 is 21242002.

It can be written as a sum of positive squares in 2 ways, for example, as 11532816 + 8491396 = 3396^2 + 2914^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20024192 and 20024201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024219) 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 3 ways as a sum of consecutive naturals, for example, 192489 + ... + 192592.

Almost surely, 2^20024212 is an apocalyptic number.

It is an amenable number.

20024212 is a deficient number, since it is larger than the sum of its proper divisors (17713824).

20024212 is a wasteful number, since it uses less digits than its factorization.

20024212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385098 (or 385096 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20024212 is about 4474.8421201200. The cubic root of 20024212 is about 271.5512532867.

Adding to 20024212 its reverse (21242002), we get a palindrome (41266214).

The spelling of 20024212 in words is "twenty million, twenty-four thousand, two hundred twelve".