16222330 has 8 divisors (see below), whose sum is σ = 29200212. Its totient is φ = 6488928.

The previous prime is 16222321. The next prime is 16222373. The reversal of 16222330 is 3322261.

It can be written as a sum of positive squares in 2 ways, for example, as 15705369 + 516961 = 3963^2 + 719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16222298 and 16222307.

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, 811107 + ... + 811126.

Almost surely, 2^16222330 is an apocalyptic number.

16222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16222330 is a deficient number, since it is larger than the sum of its proper divisors (12977882).

16222330 is a wasteful number, since it uses less digits than its factorization.

16222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622240.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 16222330 is about 4027.6953708045. The cubic root of 16222330 is about 253.1460045568.

Adding to 16222330 its reverse (3322261), we get a palindrome (19544591).

The spelling of 16222330 in words is "sixteen million, two hundred twenty-two thousand, three hundred thirty".