16541428 has 6 divisors (see below), whose sum is σ = 28947506. Its totient is φ = 8270712.

The previous prime is 16541423. The next prime is 16541443. The reversal of 16541428 is 82414561.

It can be written as a sum of positive squares in only one way, i.e., 12306064 + 4235364 = 3508^2 + 2058^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16541428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16541423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067675 + ... + 2067682.

Almost surely, 2^16541428 is an apocalyptic number.

It is an amenable number.

16541428 is a deficient number, since it is larger than the sum of its proper divisors (12406078).

16541428 is a wasteful number, since it uses less digits than its factorization.

16541428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135361 (or 4135359 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 16541428 is about 4067.1154397189. The cubic root of 16541428 is about 254.7950576833.

Adding to 16541428 its reverse (82414561), we get a palindrome (98955989).

The spelling of 16541428 in words is "sixteen million, five hundred forty-one thousand, four hundred twenty-eight".