16428276 has 36 divisors (see below), whose sum is σ = 42213444. Its totient is φ = 5385600.

The previous prime is 16428229. The next prime is 16428277. The reversal of 16428276 is 67282461.

16428276 is a `hidden beast` number, since 1 + 642 + 8 + 2 + 7 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6656400 + 9771876 = 2580^2 + 3126^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16428276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16428277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1545 + ... + 5936.

Almost surely, 2^16428276 is an apocalyptic number.

It is an amenable number.

16428276 is an abundant number, since it is smaller than the sum of its proper divisors (25785168).

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

16428276 is a wasteful number, since it uses less digits than its factorization.

16428276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552 (or 7547 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 16428276 is about 4053.1809730137. The cubic root of 16428276 is about 254.2127508423.

The spelling of 16428276 in words is "sixteen million, four hundred twenty-eight thousand, two hundred seventy-six".