20601224 has 16 divisors (see below), whose sum is σ = 44145600. Its totient is φ = 8829072.

The previous prime is 20601211. The next prime is 20601233. The reversal of 20601224 is 42210602.

It is an unprimeable number.

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, 183884 + ... + 183995.

It is an arithmetic number, because the mean of its divisors is an integer number (2759100).

Almost surely, 2^20601224 is an apocalyptic number.

It is an amenable number.

20601224 is an abundant number, since it is smaller than the sum of its proper divisors (23544376).

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

20601224 is a wasteful number, since it uses less digits than its factorization.

20601224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367892 (or 367888 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20601224 is about 4538.8571248719. The cubic root of 20601224 is about 274.1349079023.

Adding to 20601224 its reverse (42210602), we get a palindrome (62811826).

The spelling of 20601224 in words is "twenty million, six hundred one thousand, two hundred twenty-four".