16232224 has 36 divisors (see below), whose sum is σ = 32728374. Its totient is φ = 7924224.

The previous prime is 16232219. The next prime is 16232299. The reversal of 16232224 is 42223261.

It can be written as a sum of positive squares in only one way, i.e., 16160400 + 71824 = 4020^2 + 268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16232195 and 16232204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143592 + ... + 143704.

Almost surely, 2^16232224 is an apocalyptic number.

It is an amenable number.

16232224 is an abundant number, since it is smaller than the sum of its proper divisors (16496150).

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

16232224 is an equidigital number, since it uses as much as digits as its factorization.

16232224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 182 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 16232224 is about 4028.9234294039. The cubic root of 16232224 is about 253.1974586852.

Adding to 16232224 its reverse (42223261), we get a palindrome (58455485).

The spelling of 16232224 in words is "sixteen million, two hundred thirty-two thousand, two hundred twenty-four".