20224232 has 32 divisors (see below), whose sum is σ = 43492800. Its totient is φ = 8636544.

The previous prime is 20224229. The next prime is 20224247. The reversal of 20224232 is 23242202.

It is a self number, because there is not a number n which added to its sum of digits gives 20224232.

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 7 ways as a sum of consecutive naturals, for example, 22463 + ... + 23345.

It is an arithmetic number, because the mean of its divisors is an integer number (1359150).

Almost surely, 2^20224232 is an apocalyptic number.

It is an amenable number.

20224232 is an abundant number, since it is smaller than the sum of its proper divisors (23268568).

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

20224232 is a wasteful number, since it uses less digits than its factorization.

20224232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20224232 is about 4497.1359774861. The cubic root of 20224232 is about 272.4524261140.

Adding to 20224232 its reverse (23242202), we get a palindrome (43466434).

The spelling of 20224232 in words is "twenty million, two hundred twenty-four thousand, two hundred thirty-two".