20100224 has 32 divisors (see below), whose sum is σ = 40246140. Its totient is φ = 9999360.

The previous prime is 20100217. The next prime is 20100251. The reversal of 20100224 is 42200102.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 2190400 = 4232^2 + 1480^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47534 + ... + 47954.

Almost surely, 2^20100224 is an apocalyptic number.

It is an amenable number.

20100224 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20100224 is an equidigital number, since it uses as much as digits as its factorization.

20100224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20100224 is about 4483.3273358076. The cubic root of 20100224 is about 271.8944226931.

Adding to 20100224 its reverse (42200102), we get a palindrome (62300326).

The spelling of 20100224 in words is "twenty million, one hundred thousand, two hundred twenty-four".