16694428 has 6 divisors (see below), whose sum is σ = 29215256. Its totient is φ = 8347212.

The previous prime is 16694423. The next prime is 16694441. The reversal of 16694428 is 82449661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16694423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086800 + ... + 2086807.

Almost surely, 2^16694428 is an apocalyptic number.

It is an amenable number.

16694428 is a deficient number, since it is larger than the sum of its proper divisors (12520828).

16694428 is a wasteful number, since it uses less digits than its factorization.

16694428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173611 (or 4173609 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 16694428 is about 4085.8815450280. The cubic root of 16694428 is about 255.5782239361.

The spelling of 16694428 in words is "sixteen million, six hundred ninety-four thousand, four hundred twenty-eight".