16690800 has 120 divisors (see below), whose sum is σ = 61134976. Its totient is φ = 3813120.

The previous prime is 16690799. The next prime is 16690819. The reversal of 16690800 is 809661.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7407 + ... + 9393.

Almost surely, 2^16690800 is an apocalyptic number.

16690800 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 16690800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30567488).

16690800 is an abundant number, since it is smaller than the sum of its proper divisors (44444176).

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

16690800 is a wasteful number, since it uses less digits than its factorization.

16690800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 16690800 is about 4085.4375530658. The cubic root of 16690800 is about 255.5597086772.

The spelling of 16690800 in words is "sixteen million, six hundred ninety thousand, eight hundred".