16208940 has 96 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 3827200.

The previous prime is 16208917. The next prime is 16208971. The reversal of 16208940 is 4980261.

16208940 is nontrivially palindromic in base 9.

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

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 16208898 and 16208907.

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 31 ways as a sum of consecutive naturals, for example, 26761 + ... + 27359.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^16208940 is an apocalyptic number.

16208940 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 16208940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25401600).

16208940 is an abundant number, since it is smaller than the sum of its proper divisors (34594260).

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

16208940 is a wasteful number, since it uses less digits than its factorization.

16208940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16208940 is about 4026.0327867517. The cubic root of 16208940 is about 253.0763360190.

The spelling of 16208940 in words is "sixteen million, two hundred eight thousand, nine hundred forty".