16706840 has 16 divisors (see below), whose sum is σ = 37590480. Its totient is φ = 6682720.

The previous prime is 16706839. The next prime is 16706857. The reversal of 16706840 is 4860761.

It is a junction number, because it is equal to n+sod(n) for n = 16706797 and 16706806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208796 + ... + 208875.

It is an arithmetic number, because the mean of its divisors is an integer number (2349405).

Almost surely, 2^16706840 is an apocalyptic number.

16706840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16706840 is an abundant number, since it is smaller than the sum of its proper divisors (20883640).

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

16706840 is a wasteful number, since it uses less digits than its factorization.

16706840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417682 (or 417678 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 16706840 is about 4087.4001516857. The cubic root of 16706840 is about 255.6415474808.

The spelling of 16706840 in words is "sixteen million, seven hundred six thousand, eight hundred forty".