16699540 has 48 divisors (see below), whose sum is σ = 41207040. Its totient is φ = 5604480.

The previous prime is 16699531. The next prime is 16699561. The reversal of 16699540 is 4599661.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16699493 and 16699502.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 60 + ... + 5779.

It is an arithmetic number, because the mean of its divisors is an integer number (858480).

Almost surely, 2^16699540 is an apocalyptic number.

16699540 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 16699540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20603520).

16699540 is an abundant number, since it is smaller than the sum of its proper divisors (24507500).

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

16699540 is a wasteful number, since it uses less digits than its factorization.

16699540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 5870 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 16699540 is about 4086.5070659427. The cubic root of 16699540 is about 255.6043081391.

The spelling of 16699540 in words is "sixteen million, six hundred ninety-nine thousand, five hundred forty".