16706880 has 84 divisors (see below), whose sum is σ = 57474612. Its totient is φ = 4454400.

The previous prime is 16706867. The next prime is 16706881. The reversal of 16706880 is 8860761.

It can be written as a sum of positive squares in 2 ways, for example, as 12446784 + 4260096 = 3528^2 + 2064^2 .

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

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16706881) 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, 21 + ... + 5780.

Almost surely, 2^16706880 is an apocalyptic number.

16706880 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 16706880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28737306).

16706880 is an abundant number, since it is smaller than the sum of its proper divisors (40767732).

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

16706880 is a wasteful number, since it uses less digits than its factorization.

16706880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824 (or 5811 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 16706880 is about 4087.4050447686. The cubic root of 16706880 is about 255.6417515021.

The spelling of 16706880 in words is "sixteen million, seven hundred six thousand, eight hundred eighty".