16772272 has 40 divisors (see below), whose sum is σ = 35689680. Its totient is φ = 7572480.

The previous prime is 16772263. The next prime is 16772281. The reversal of 16772272 is 27227761.

It is an interprime number because it is at equal distance from previous prime (16772263) and next prime (16772281).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40804 + ... + 41212.

It is an arithmetic number, because the mean of its divisors is an integer number (892242).

Almost surely, 2^16772272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16772272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17844840).

16772272 is an abundant number, since it is smaller than the sum of its proper divisors (18917408).

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

16772272 is a wasteful number, since it uses less digits than its factorization.

16772272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its digits is 16464, while the sum is 34.

The square root of 16772272 is about 4095.3964399066. The cubic root of 16772272 is about 255.9748510451.

The spelling of 16772272 in words is "sixteen million, seven hundred seventy-two thousand, two hundred seventy-two".