16220234 has 16 divisors (see below), whose sum is σ = 24935040. Its totient is φ = 7911120.

The previous prime is 16220233. The next prime is 16220249. The reversal of 16220234 is 43202261.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16220233) by changing a digit.

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, 14072 + ... + 15180.

It is an arithmetic number, because the mean of its divisors is an integer number (1558440).

Almost surely, 2^16220234 is an apocalyptic number.

16220234 is a deficient number, since it is larger than the sum of its proper divisors (8714806).

16220234 is a wasteful number, since it uses less digits than its factorization.

16220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 16220234 is about 4027.4351639722. The cubic root of 16220234 is about 253.1351015427.

Adding to 16220234 its reverse (43202261), we get a palindrome (59422495).

The spelling of 16220234 in words is "sixteen million, two hundred twenty thousand, two hundred thirty-four".