16906940 has 12 divisors (see below), whose sum is σ = 35504616. Its totient is φ = 6762768.

The previous prime is 16906937. The next prime is 16906949. The reversal of 16906940 is 4960961.

It is a self number, because there is not a number n which added to its sum of digits gives 16906940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16906949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 422654 + ... + 422693.

It is an arithmetic number, because the mean of its divisors is an integer number (2958718).

Almost surely, 2^16906940 is an apocalyptic number.

16906940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16906940 is an abundant number, since it is smaller than the sum of its proper divisors (18597676).

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

16906940 is a wasteful number, since it uses less digits than its factorization.

16906940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845356 (or 845354 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 16906940 is about 4111.8049564638. The cubic root of 16906940 is about 256.6581170668.

The spelling of 16906940 in words is "sixteen million, nine hundred six thousand, nine hundred forty".