16894720 has 72 divisors (see below), whose sum is σ = 41280624. Its totient is φ = 6623232.

The previous prime is 16894699. The next prime is 16894727. The reversal of 16894720 is 2749861.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16894720.

It is not an unprimeable number, because it can be changed into a prime (16894727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85662 + ... + 85858.

It is an arithmetic number, because the mean of its divisors is an integer number (573342).

Almost surely, 2^16894720 is an apocalyptic number.

16894720 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 16894720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20640312).

16894720 is an abundant number, since it is smaller than the sum of its proper divisors (24385904).

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

16894720 is an equidigital number, since it uses as much as digits as its factorization.

16894720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 16894720 is about 4110.3187224350. The cubic root of 16894720 is about 256.5962663687.

The spelling of 16894720 in words is "sixteen million, eight hundred ninety-four thousand, seven hundred twenty".