16163428 has 12 divisors (see below), whose sum is σ = 28321020. Its totient is φ = 8071712.

The previous prime is 16163423. The next prime is 16163437. The reversal of 16163428 is 82436161.

It is a happy number.

16163428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2458624 + 13704804 = 1568^2 + 3702^2 .

It is a super-2 number, since 2×16163428² = 522512809422368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16163428.

It is not an unprimeable number, because it can be changed into a prime (16163423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058 + ... + 6046.

It is an arithmetic number, because the mean of its divisors is an integer number (2360085).

Almost surely, 2^16163428 is an apocalyptic number.

It is an amenable number.

16163428 is a deficient number, since it is larger than the sum of its proper divisors (12157592).

16163428 is a wasteful number, since it uses less digits than its factorization.

16163428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006 (or 5004 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 16163428 is about 4020.3765992752. The cubic root of 16163428 is about 252.8392485995.

Adding to 16163428 its reverse (82436161), we get a palindrome (98599589).

The spelling of 16163428 in words is "sixteen million, one hundred sixty-three thousand, four hundred twenty-eight".