16546400 has 144 divisors (see below), whose sum is σ = 45715824. Its totient is φ = 5806080.

The previous prime is 16546393. The next prime is 16546403. The reversal of 16546400 is 464561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 16546400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16546403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384779 + ... + 384821.

It is an arithmetic number, because the mean of its divisors is an integer number (317471).

Almost surely, 2^16546400 is an apocalyptic number.

16546400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16546400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22857912).

16546400 is an abundant number, since it is smaller than the sum of its proper divisors (29169424).

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

16546400 is a wasteful number, since it uses less digits than its factorization.

16546400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 16546400 is about 4067.7266378163. The cubic root of 16546400 is about 254.8205837769.

The spelling of 16546400 in words is "sixteen million, five hundred forty-six thousand, four hundred".