20302224 has 40 divisors (see below), whose sum is σ = 52704960. Its totient is φ = 6734208.

The previous prime is 20302223. The next prime is 20302259. The reversal of 20302224 is 42220302.

It is not an unprimeable number, because it can be changed into a prime (20302223) 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, 10069 + ... + 11915.

It is an arithmetic number, because the mean of its divisors is an integer number (1317624).

Almost surely, 2^20302224 is an apocalyptic number.

20302224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20302224 is an abundant number, since it is smaller than the sum of its proper divisors (32402736).

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

20302224 is a wasteful number, since it uses less digits than its factorization.

20302224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087 (or 2081 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20302224 is about 4505.7989302675. The cubic root of 20302224 is about 272.8022021190.

Adding to 20302224 its reverse (42220302), we get a palindrome (62522526).

The spelling of 20302224 in words is "twenty million, three hundred two thousand, two hundred twenty-four".