16220434 has 8 divisors (see below), whose sum is σ = 24421248. Its totient is φ = 8080020.

The previous prime is 16220429. The next prime is 16220453. The reversal of 16220434 is 43402261.

It is a happy number.

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

It is a plaindrome in base 14.

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 3 ways as a sum of consecutive naturals, for example, 14422 + ... + 15505.

It is an arithmetic number, because the mean of its divisors is an integer number (3052656).

Almost surely, 2^16220434 is an apocalyptic number.

16220434 is a deficient number, since it is larger than the sum of its proper divisors (8200814).

16220434 is a wasteful number, since it uses less digits than its factorization.

16220434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30200.

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

The square root of 16220434 is about 4027.4599935940. The cubic root of 16220434 is about 253.1361419472.

Adding to 16220434 its reverse (43402261), we get a palindrome (59622695).

The spelling of 16220434 in words is "sixteen million, two hundred twenty thousand, four hundred thirty-four".