16694406 has 24 divisors (see below), whose sum is σ = 37014120. Its totient is φ = 5435136.

The previous prime is 16694387. The next prime is 16694411. The reversal of 16694406 is 60449661.

16694406 is a `hidden beast` number, since 166 + 94 + 406 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10011 + ... + 11558.

It is an arithmetic number, because the mean of its divisors is an integer number (1542255).

Almost surely, 2^16694406 is an apocalyptic number.

16694406 is an abundant number, since it is smaller than the sum of its proper divisors (20319714).

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

16694406 is a wasteful number, since it uses less digits than its factorization.

16694406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620 (or 21617 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 16694406 is about 4085.8788528296. The cubic root of 16694406 is about 255.5781116687.

The spelling of 16694406 in words is "sixteen million, six hundred ninety-four thousand, four hundred six".