20224015 has 48 divisors (see below), whose sum is σ = 30566592. Its totient is φ = 12773376.

The previous prime is 20224013. The next prime is 20224031. The reversal of 20224015 is 51042202.

It is not a de Polignac number, because 20224015 - 2¹ = 20224013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20224015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224013) 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 47 ways as a sum of consecutive naturals, for example, 208447 + ... + 208543.

It is an arithmetic number, because the mean of its divisors is an integer number (636804).

Almost surely, 2^20224015 is an apocalyptic number.

20224015 is a deficient number, since it is larger than the sum of its proper divisors (10342577).

20224015 is a wasteful number, since it uses less digits than its factorization.

20224015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20224015 is about 4497.1118509550. Note that the first 3 decimals coincide. The cubic root of 20224015 is about 272.4514516660.

Adding to 20224015 its reverse (51042202), we get a palindrome (71266217).

The spelling of 20224015 in words is "twenty million, two hundred twenty-four thousand, fifteen".