16639122 has 32 divisors (see below), whose sum is σ = 34429824. Its totient is φ = 5356800.

The previous prime is 16639111. The next prime is 16639123. The reversal of 16639122 is 22193661.

It is a self number, because there is not a number n which added to its sum of digits gives 16639122.

It is not an unprimeable number, because it can be changed into a prime (16639123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53347 + ... + 53657.

It is an arithmetic number, because the mean of its divisors is an integer number (1075932).

Almost surely, 2^16639122 is an apocalyptic number.

16639122 is an abundant number, since it is smaller than the sum of its proper divisors (17790702).

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

16639122 is a wasteful number, since it uses less digits than its factorization.

16639122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its digits is 3888, while the sum is 30.

The square root of 16639122 is about 4079.1079907254. The cubic root of 16639122 is about 255.2956816200.

It can be divided in two parts, 16639 and 122, that added together give a palindrome (16761).

The spelling of 16639122 in words is "sixteen million, six hundred thirty-nine thousand, one hundred twenty-two".